lol, how would you "pump someone's bags" with drivechains? The whole point is to use Bitcoin.
This is just more of the "shitcoins on Bitcoin" nonsense.
As far as Cosmos is concerned, no, I don't know anything about it, I will look into it, thanks. But your point about cross chain swaps not working is silly. Already works today, and there's many account-less exchanges that offer them. The main problem is you'd have to trade your Bitcoin for some shitcoin (except for submarine swaps which are great) so I wouldn't use most of them.