Sir Swindle:
Honestly making the block list more user available rather than an admin request would help.
Um... there
isn't a block list, admin request or otherwise.
The only thing you can block is rMail from another user, and that isn't by admin request - it's just a matter of clicking a link at the top of an rMail from that user, and the two of you will be automatically blocked from rMailing each other.
I believe that jase has said he will not code a system that allows people to not see individual public forum posts by selected users. If you want to avoid seeing a public forum post, you have to exercise a bit of willpower, and not open the thread.