Those things that really should be done on the forum are:
1. Banning of short posters.
2. Allowing to start a new topic only after reaching a rank of Member.
3. Removing non active accounts (like few months without any activity).
4. Too old threads deleting (BTW it is happening this days on the forum, so something good has finely done to make this forum more healthy).
You're wrong on all points:
1. If something can be said in 1 word, it should be said in 1 word. That's efficient.
2. I've seen several very intelligent posters create very good new threads. They should be able to do that without spamming the forum for months.
3. You want
satoshi's account to be gone?
4. A forum serves as an archive. Guess you've never searched the forum to find the solution you were looking for?