Tai Lopez basically sank all the companies he ended up buying and then facing lawsuits from investors, basically gave those companies to investors to get from under the debt. My guess is that once the investors got a hold of and look at bb.com, they quickly made the decision to get rid of the forums. I also think the reason that bb.com's forums went to shit is because of Tai himself not giving a fuk about them. I watched a video about him earlier being back to his scheming / scamming old ways with new 'Mastermind' courses that will only cost you a shit load of money for the same lines of bull shit you've seen and heard over and over, even for free, on the internet.
Actually here's the video: