I can't answer rhetorical questions, especially those that should have self-evident answers.
What I can say is I've slowly been drafting some ideas for forum software which might or might not eventually end up created into a forum in the future. Some of those designs try to deal with the very problems we've been having here, for instance the draft currently emphasises a reduction on "Bans", people only get banned for "Major" things (Spamming, site defacement, severe levels of abuse etc), there is more leniency towards casual posters while also granting discussion areas for those that want to be more Professional, with a standard set of catch most (not quite all) forums in the middle to allow the discussion between both types of people.
I'm still in the process of drafting it, I did also want to look towards doing something else that would revolutionise the forum system, unfortunately someone pipped me to it on the Kickstarter site so I'm waiting to see how far they get as I'm sure the idea is good, it will just be interesting to see if the guy is anywhere near where I was going to go with it. (Although the guy's asking way too little for the start-up considering what it would take to make happen)