Cramer said to buy it well below 70. Once it got around 70 he said others claim it was a bubble to be careful and dodged it.
However I disagree with your last statement. Citron report is a bear raid. Reports like this and their followers pile on. It becomes a self fulfilling prophecy. If there was no citron report or other negative reports, the stock would have traded differently as there wouldnt have been a ridiculous ~40-50% short interest on the stock. When you have that much short interest, it becomes a self fulfilling prophecy. Even a non-bubble stock can be bear raided down. This is simple market mechanics.
Well every time Cramer promotes one of my long stocks I start seriously thinking about selling. When he bashes my stocks I'm not too worried and look to buy. I think he's probably one of the best contrarian indicators there are.