Please clarify exactly what alt coin are you supporting.
Besides the initial distribution problem, you aren't addressing the "nothing at stake" flaw in POS. With POW , not only do you have to purchase or collude with a large mining company but spend the electricity to create the attacks. Bitcoins weakness("wasted" electricity) is also its strength in that it adds real costs to attacking the system.
I'm not supporting any alt coin, I'm supporting fading out PoW for Bitcoin.
There's a variety of choices in terms of solving "nothing at stake". Bitshare's DPoS system being one of them.
The initial cost to attack a PoS system is actually pretty much astronomical, it's so high, that it hasn't even happened yet, and unlikely to ever happen. There has been zero 51% attack on PoS altcoin. While many PoW altcoin has been attacked to death. So apparently "wasted" electricity hasn't really deterred PoW attackers that much.