@onealfa & cryptico
At bittrex only those can sell who bought there before. In the end it makes no difference if they sell into the wall or sell to somebody else who then sells into the wall.
How I see it - the ONLY limitation is that nobody can deposit to bittrex "from outside"
But everyone can buy from a profit seekers now at higher price (even never purchased even 1 block during official ITO period), and immediately dump into bittrex wall.
And it will automatically count as a "refunded block", reducing the total number sold in ITO.
Fud'sters will do it again and again, until less the 850 total qty is reached.
GCab, do you thing at bittrex there is some sort of tool or algorithm tracking the "origin" of every BLOCK.

And only those BLOCK's purchased during oficial ITO period - will count ?
If so - do you have proof of it?