Yes.
Diabolus is accepting DRK currently.
Starting next wednesday, a second market Nucleus, will accept DRK as well.
Ok, thanks. Googled a bit and they seem to be either not very relevant or new according to this list I found:
http://www.deepdotweb.com/2013/10/28/updated-llist-of-hidden-marketplaces-tor-i2p/Is that thing about too few anonymized DRK I read about a few pages ago a problem for those markets, i.e. is that maybe a cause they do not use it?
If it was my choice it would have more to do with liquidity, price stability, the payment protocol, maybe some tx malleability or other fixes that weren't implemented yet when darkcoin forked either. Also, there's the problem of having to update constantly and having devs break things when they introduce new features and fixes.
But yeah, not being able to fully use the only feature that makes it better than btc for their purposes is a show-stopper.
Adoption takes time anyway, I don't think they feel a pressing need to move to something more anonymous than btc at the moment.