Ok, maybe I've understood something wrong. Can you explain what exactly is rate-limiting in abit's implementation? I'm guessing that's the way we are going, it has already gained so much support.
In Bytemaster's original post the rate limitation is a way of preventing spam. Users can make transactions depending how much they own the core token. When they have used their quota, that's it. Transactions are limited for them until they have waited for some time, then they can make transactions again.
In abit's implementation we are still using fees to prevent spam, not rate-limitations. Users can make transactions as much as they like, they have to pay either with feecredits or with BTS or asset they are transacting.
Talking abour @abit's implementation, if shareholders earn a tradable token for fees .. we could literally establish a 'fee-market' .. people can buy fees or become a BTS shareholder
I don't think that feecredits are meant to be tradable. That would change the system in a very different way and I don't see any immediate advantage with that. It just makes things more complicated than they need to be.