The Greek subforum in bitcointalk currently has no moderator. There used to be a single moderator but I guess he became busy with life and gave the forum up.
Good luck with that.
Our local board once had moderator but since then we asked to get a new one many times and there was no answer so far.
Good solution would be for each local board to have their own local moderator, but I don't think Greek board is very active, it's constantly on the bottom of activity board so I don't think there is real danger of a big spam attack.