As of today or thereabouts the addon nags you about updating Auction_DB, and SapU is deliberately delaying updates to Curse, thereby funneling people to the $2/month "premium" service.
SapU's crotchety masterpiece is rapidly losing its allure.
This didn't go well for oQueue and although SapU seems not to give a crap about pretty much any user feedback, I hope it goes just as well for TSM. It's time for someone to rewrite that mess from the ground up anyway.