I wonder if diaspora is going to have each person have a GPG key. I think usability is going to be the big issue with them in terms of where the "seed(?)" is hosted. They'll need free hosting providers of some kind. I should read more about it.

Yes, I think that's the plan Curtis: GPG is at the heart of it all. They suggest that most people will go for hosted, cloud-style solutions but that they will be able to run their own if they have the resources and interest, and (crucially) should be able to move from one provider to another with relative ease. 

If we consider

a) crisp tags=tagging,

b) fuzzy tags= tagging(0...1) /* fuzzy quality */,

c) multi-valued tags=tagging((quality=0...1),/* fuzzy quality */ (value_to_learner=0...1) /* importance with fuzzy quality)) 

I had thought Intent would be identified in the fuzzy or multi-valued tag examples. As mentioned the cold start problem would be worse as the tags become more complex but through a combination of UI and  adaption, personalization to decrease the overhead with tagging we should get better data of all three types.

I should note, that I thought of scalar tags as C, which effectively include the confidence or fuzziness of B for specific attributes. This way as a learner, I can also review the tagging meta-data created by more experienced.

I think the above comments are an example of how a continued discussion can begin to flush out an idea, push out and hopefully clarify points and when this has reached its natural end I wonder how this complete discussion might be tagged. I am not suggesting this conversation is anywhere near done - just an observation.

I am trying to think through how I might answer you Jon with respect to an example of an intent tag. I have not yet gathered a single piece of data and yet as I read through the prior contributions of learners in my course archive I am concerned as to how others may find and then perceive value and what they might need to assist them in possibly finding their way through the material. (Maybe I am just expressing doubt about my research) However I see great potential in this archival mass partly due to my perspective and partly because I am working hard to find this value. I think tagging is just one element in this process.

In reading through two years of course contributions I find rich discussions, great clarity of intent, as well as a lot of phatic asides. I think the phatic asides can be as valuable as the rich contributions  and in most cases it is clear that they are just an aside comment but there are also a number of postings that have rich content but appear to wander somewhere else completely. The idea of an intent tag in this instance might be "an aside" or "off topic" or something more focussed on the actual wandering. I understand your concern about the metadata but maybe the idea of an intent-tag is less about the broader aggregation and could be more seen as a set of sub-tags. This does assume that the author used some clear crisp or fuzzy tags as well but I think of systems that use hierarchical naming schemes and maybe tagging needs to evolve into some form of multi-layered hierarchy. One layer (the top) that spoke to a more universal audience and sub-layers that spoke to a local audience.

@Stuart - I completely agree re sub-tags (we have work in progress to try to do that and my earlier systems used a 2-stage hierarchy of crisp tags then a further layer of fuzzy ones) but it becomes very complex in interface terms and massively increases the cold start problem when we do that. Each higher level in the hierarchy is a little tag system in itself in which a separate tag cloud develops.

I like the concept of phatic tags - it opens up a huge realm of other potential speech acts we might encapsulate as tags- performative tags (e.g. 'I agree', 'I do') for instance. I guess the value is particularly great if we are performing qualitative content analysis or want to visualise dialogue structures but I am always wary that every time we impose a constraint or affordance we are changing the system: in its weakest form it is a kind of social equivalent of Schroedinger's cat, in its strongest it can profoundly shape and form interactions. This can have value when we are strongly aware of what and why we are shaping it the way we do though, more often, we have tended to let it happen: for instance, the highly constraining form of the threaded discussion that is so ubiquitous and unreflectively implemented in much online learning. Giving people more control over the kind of tags and other fields used, as well as the ways things can interact, seems like a good idea.

Given the developing discussion here, it seems like it would be good to let people (collectively) create what would effectively be a structured database: to add fields that allow us to capture more structured data such as 'intent tags' or  Glenn's more structured tags, or Eric's multi-valued tags. Once a particular kind of data entry field has been created by someone, anyone else could use it when adding resources (blogs posts, wiki pages, bookmarks etc) if they want.  There is actually a forms plugin for Elgg that allows administrators to do something vaguely along those lines so it would not take too much to convert it into something a bit more social and let anyone play. Once you have defined a certain field type (e.g. 'intent', 'metatag' etc) you and others could re-use it in other forms. It would be hard to make it do more than act as a search field or maybe cluster things as behaviours are much harder to enable than data capture, but it might help to give a bit of hardness to the process if that's what people need.

I like that metaphor very much. I wonder if the pointillist picture in an online context is not so much made of people in networks as aspects/facets of them revealed through the artefacts they share? I think most of us would provide a few colours to the mix!

Aoki's lived-experience ideas are very nice. They resonate with Peter Vaill's thoughts on learning as a way of being (see book of the same name) which also appeal to me a lot.