It's probably going to be easier to just replace Street Talk with a Random/Crap! Board, same thing as before except rules are more lenient, laid back, and posts aren't added into your post-count. (I'd be willing to help write up a condensed, more lenient version of the rules specifically for that board, Caruso can help with that as well).
It'll be more convenient and give the board more of a purpose (seeing how we already have "Social Topics" for more serious yet generally unrelated discussion). Like the difference between...well...General Discussion and Crap! on IWBTF (for lack of a better example).