That would mean the admins would have to start checking up on everyone who's name appears on their naughty list. Gonna be a helluva lot of work for some people.
To be honest, (Not connected to the sanctions) Problems exist if you allow them too. Got treated wrong? Don't like this or that person? Got sanctioned wrongly? Let it go. Staying angry over a game's rather 'unintelegent', no? If everyone just took a breather every once in a while and swept everything off their table, this place should be alot nicer to any newcomers.