Would you take the opposite trade against someone who has got detailed and specific insider information about a project?
Fuck no I wouldn't, yet many of you do this on a regular basis without realizing it.
inb4 "b-but muh 2017 gains"

If a development team really believed their token price would go higher than ICO price 2x or more, the last thing they would do would be selling it to you in an ICO.
What they do by doing so, is betting on the token price to go lower than ICO price.
Same as short selling in the stock market.

Prove me wrong.
Pro-tip: you can't.