If I understand right,

Uniswap like apps can run on Koinos without a fee. Would it bring the same problem hive/steem has at the moment? there is no reason to have a large amount.

I think it would be awesome to have all these apps work feeless or against some fee for delegation.

I think the mechanic behind must be really smart to have a huge success. I can imagine how it works out if Games, Defi, and so on come to koinos.

Edit: how do free wallets work to prevent spam?