I’m in general agreement with John, I think there’s an AA level SC to be had here, perhaps with a wider scoped SC at AAA.
Particularly this bit:
> I will continue to assert that it is because without a fixed taxonomy you get contextual information, but presented to the end user in prose, which is hard to then transform (personalize).
If the pre-defined parts of coga-personalisation are cherry-picked, that’s good source material at AA.
We need to start with the most widely applicable (across sites) and most important (to users) pre-defined terms, and (very importantly) get some sort of user-agent software going that makes use of it (e.g. a browser extension).
I think a wider-scope SC at AAA using open-taxonomy could be useful with a service such as this demo uses:
https://www.widgit.com/support/insite/index.htm
However, as a starting point (and at AA) I think the concrete terms are most obvious and most likely to get traction. In W3C a context (essentially the web-ecosystem), starting with small concrete steps is always more effective than moon-shots.
Cheers,
-Alastair