That is interesting and not great in my mind. Exp, I buy 3btc worth of Phreak, turns out I lose money somewhere else and need to sell 2btc worth fast, now they are burned and I'm 2btc down? Lol this will make me invest less.
Nope, that's not how it works. Let's say you buy 3 btc worth of coins, then you dump. After ico is over, all dumped coins are burned by Yobit, this means supply will be reduced with influence on coin price.
TL;DR=if you buy and dump with no reason you make other investors rich

Yes phreak burned and I lose 3btc because I needed money asap. Fail, I will still throw a few sat at this but that is a weird rule to me.