Aside from them having no use cases...
* Price of one token will automatically decrease when there's a flood of free tokens getting into markets and scarcity of the token decreases.
* Even if you look at it from the point where your bag wouldn't necessarily lose value as in whole, as it too is increasing with the circulating supply there's one thing you forget, and that's traders. Traders use altcoin or fiat money pairs to do technical analysis, and it obviously will look bad when the trader sets the targets. That would mean that charters would need to use marketcap graph to find a bullish TA and probably no one would even bother to do that as very few do it now.
* Rebasing as a solution is worst possible as it eats away the whole idea of having high interest from staking in the first place.
So why the hell do they keep coming back on the markets?