We have not promoted it for a long time, but people still write to us periodically to be listed or have their listings updated.

I like the idea of criteria analogous to RYF. Have also thought about enabling some kind of reputation/rating system, with all the problems that entails. But could be used to differentiate, for example, designers who use GNU/Linux + Inkscape, from designers who use Mac + Inkscape, while still listing the latter.