So, everyone here wants a forum policy change? Let's take a look at what we can do to help. We want something that compromises Kestas's wish to allow complete freedom of speech, and each individual user's views on what is appropriate and what is not.
This is difficult to do with policy, because each individual user's view on what is too far will be different. Policy has to draw the line at a specific point, and that point will always be too far for part of the community and not far enough for most of the rest. Last time we tried to draw this line, people like YellowJacket, Draugnar, Synapse and Krellin went beserk to the extent that we had to bring Abge back.
So, what solution appeases everyone? It would have to be one where every user determined their own line, and the forum only showed things that they found appropriate...
Oh hey, that's the mute button!
If any of you actually wanted to clear the forum of Mapleleaf, you would mute him; that way you would never have to see anything he writes again. Evidently none of you do, because you're all discussing what he has written, so I'd assume you've all read it and so haven't got him muted.
"Mute isn't enough."
This must be what everyone in the thread thinks, considering they haven't got Mapleleaf muted. So, why would people think that the mute isn't enough?
I think (correct me if I am wrong) it is because people know that, while they can't see anything Maple posts, other people will still see it and so the forum quality is still being pulled down. However, the forum's quality has increased to the level you desire for you, and so everything is solved for you. Additionally, everyone else has the option to raise the forum's quality to the level they desire using the mute button as well.
Essentially, if nobody wants to see what Mapleleaf is saying, then everyone should mute him. However, for the benefit of those people who either actually want to see what he has to say (not sure if there's anyone who does, but there might be), or those people who get kicks out of insulting him/attempting to debate with him, there's no point in banning or silencing him. If you've muted him, you've done that for yourself. Why force everyone to raise the forum to the same quality if they don't want to?
TL;DR Use the mute button.