How about if the admin filter some keywords(foul words), such that when you use them, you will be handed ban. Such as 7days ban, few days signature ban, read only mode etc.
This is an overkill and a suggestion I don't think will get implemented. Trolling and cyber bullying is not a major problem at this point in time and we are all just familiar strangers talking across our computer screen and if someone goes extremely overboard, you can report to the mods and specific action can be taken for such a case.
Even if hypothetically such a feature was implemented, it can easily be bypassed by adding certain characters to replace certain words like * or using v to replace u.
This will promote peaceful co-existence and curtail to the barest minimum any form of bullying, unfriendliness, acrimony or as the case may be.
Do not expect kindness from strangers and you will not get dissapointed.