Very bad idea. People who will get the coins later will get screwed, while early ones pocket the money selling coins.  There will still be dumping, but only early ones would be making money, while those who come later will be left holding the bags,.

How would we trust the developers aren't picking themselves and their friends first?  They are already getting 10% of stakes, so they will have plenty to sell while  rest watch and wait.

If this system is adapted, I want to see provable/verifiable random mechanism.   That is, Sha256  (BTT account ID) then use that result in a java's Math.random as a seed. No special favors for developers.