[Tei-council] xenoData users?

a few weeks ago i posted a query about usage of xenoData on tei-l and followed it up with a repeat on twitter. i was a bit surprised to receive absolutely zero response (full disclosure : i did get a reply from m.mueller but not to the question i asked) . so either no one is using this lovely tag or no one wants to admit to it. either of which seems somewhat of a problem. maybe, i thought, maybe the mandarins of the tei council know better? are any of you using it for real in a project?do you know any project which is?