I fully and 100% concur with you. But during the time of the hype, even if you already held the same opinion as you do now, would you have traded against the momentum? My whole point is that it is not worthy and potentially dangerous to let one's rational motivate putting on trading positions against market momentum. It is way better to hold off until after the bubble bursts if you cannot position yourself beforehand with the market due to your own convictions. Look at Chipotle, the hype and stock price move was absurd, it is a frigging fast food burito chain, nothing more, nothing less. Yet the stock kept moving up for years in a straight arrow fashion.
I think both are equally absurd and that both have no legs whatsoever. Never mistake a one-hit wonder for a sustainable business. Angry Birds was all the rage 5 years ago. Now nobody cares about it at all. That's because its not a real business. It's a lottery ticket that actually hit. It was good for them in the short term but it's not something that's investment worthy. If you want to put your money into a company that sells sticker packs to teenage girls with mobile phones, be my guest. Just ask yourself how often that sales like that can realistically happen on a recurring basis to create a real business over time. I think we all know the answer.