Ok, then i don't understand your sentences:
The would-be miner says about switching to a halving-free version of Bitcoin, which is quite the opposite of the total block reward cancellation you mention. The idea of 21 million coin limit may have served to boost the Bitcoin usage initially, but it will ultimately and inevitably turn it into a Ponzi.
That sounds like you think the cap will turn it into a ponzi and a halving free version would be better.
A halving free version means that the reward is constant, i.e. there is no halving, and thereby no limit on the number of coins mined. I don't say it is perfect, but it seems to be a better option, at least now. In fact, this whole topic is about just that...
And yes, Bitcoin already
is a sort of Ponzi