As a player who's never been reported, why aren't behavior penalties ever forgiven?

[Vivi_Bushido]

To be blunt: the worst I can do is fling ASCII signs at another's chat who can block me with a push of a button.
Nothing warrants permanent exclusion. Bans should top out at 6 Months unless you do really nasty stuff like stalking, IRL threats etc.

Being permabanned for simply losing your temper in a heated discussion (which can happen to the best of us) is way overkill.

I agree. Sadly the GMs do not. I got temporally banned once for posting a meme that said Oh great not this discussion again. The email said it was because it contributed nothing relevant to the conversation and now that strike follows me for the rest of my life.