He still has a group of followers because he's rich and has a nice pedigree, but he has fallen from glory pretty hard and his calls don't matter anymore.
One of the best short sells these days is to short everything in his portfolio when you think he is about to get a margin call. Because that will force him to liquidate several large positions in different stocks.
So for example, when Valeant Pharmaceauticals was tanking from its highs of $220, all the way to $16, after Bill Ackman defended it, doubled down, joined the board, and bought calls, and then admitted to not having more funds available. You just short other things in his portfolio, or at least short them on the expectation that other people are going to short.
Its fun. I do "proxy trades" a lot, where I trade a temporarily correlated asset, while the market focuses on a different asset.
His fund didn't go insolvent, many investors did redeem their stake in his funds when their lockup periods were up, and he has enough interest and clout to continue?
I'm not sure what you are asking. Its worded like you thought there would be police or broken kneecaps involved