That has been ongoing for awhile, no idea why, maybe an arbitrary word limit... Apart from not being able to contribute content, AFAIK there are issues with signing up new recipients. But if no one new can get added to the receiver files then how will bounties for wallets, etc, get completed? Also being a closed ecosystem of recipients earning devcoins isn't right.
Maybe fork devcoin into two coins, devcoin2 and wikicoin, and holders could redeem their dvc into which ever direction they wish. Devcoin2 could include bounties to benefit crypto in general, and wikicoin could include many types of media. Just food for thought and conversation, but sometimes change is good, better than stagnating.
I'm having the same problem. Had a look through the admin settings re. dokuwiki and nothing obvious so must be at the server end (no. of connections, webserver security?)