I respect procedure. I believe this sums it up:
Bypass dispute resolution such as RFC/U.
Propose community ban.
Block me before I know the ban has been proposed.
Consider accusations I can't respond to, since I am blocked.
Don't consider points that are important to me, since I am blocked and can't offer them.
Ban. 
It violates just about every principle of procedural fairness employed by every respected community I've ever heard of. It makes me look good, since the anger that led to this was based on the belief that.... Wikipedia violates many principles of fairness employed in respected communities. 

Doesn't it seem like the way to prevent disruption is to make editors respect Wikipedia more, not less?