I do accept DM maps, but just not all of them anymore. I want at least 50% of the online players to be able to finish it. If I don't see that while testing it. I won't accept. Of course first time is an exception, because "new" map and you still getting used to it, but while I'm testing a map I need to see that most players aren't complaining about it or at least having hope into trying again after they fail. I haven't tested a map for so long and I have told Gold and Nitrox to check uploaded maps ONLY for now (till I'm active again). I talked with Gold and Nitrox and told them not to check reported maps, because some of them needs just simple edit in the map file and the map will be perfect again (they can't do that). Gold and Nitrox are doing more than good so far and I do like their job. When I started to accept DM maps few months ago (~6 months ago) most of the players used to be able to finish the map. Those players mostly left the server/community and the current players are new incommers. By allowing DM for new incommers and a "total" noob player to the server. He will just leave and the reasons are "hard map" "maps gets repeated (when players vote 2)". He would wanna try something else so he can enjoy and win like "NTS" "CG" DD" and also "CTF" because those gamemodes requires LUCK with skills (not skills alone).
Also that sentence in the mapping rules. It says that ONLY 1 player will finish so try to keep it simple as well. The way I look at the new DM maps are not simple at all.
RTF maps should have an high level of difficulty to finish, but take in consideration that only 1 player will win so try keep it simple as well.