There are a lot of good ideas that have been brought up in here, and some I don't necessarily agree with as well, but here's one I will chip in.
People should be careful not to misuse colour sanctions. I've seen a tendency for people to just outright sanction upon request regardless of the situation, or to misuse their own sanction. Now for people who go all haphazard nuking people randomly, or people who are constantly acting the bandit (RUKUNU or Freudenschade for example) to alliances' lower ranges are fine to sanction IMO. But when you start sanctioning one-off non-nuke rogues or even ghosts that haven't done anything but ghost, you're on a slippery slope that would inevitably drive people that might otherwise turn out to be productive members out of the game.
Also, I definitely agree about trying to make new players feel more welcome. Although with that would have to come some responsibilities to teach them how to post in such a way that they won't make a speedy pariah of themselves by slinging mud at everyone who doesn't go along with their get-popular-quick schemes or excessive butthurt over getting hit for a legitimate reason.
And let's be frank here, there are times I wish certain posters in certain threads were gagged, for being far too vitriolic. (This always depends on the thread.)
Anyway, that's my two penniä.