No it doesn't. It has one purpose, and one purpose only: to secure the network against double-spending attacks by making it infeasible to reverse transactions.
I won't comment on PoS. I am not familiar with it, but it seems like it bypasses this need simply because it is more of a compromise based on classical consensus.
> With Ethereum, Cardano, Solana, etc, your value is in the hands of where the developers choose to take the protocols. They can and have changed their monetary policies, and they will again.
This is a bad premise because it frames the discussion as a false dichotomy: between Bitcoin and Ethereum/Cardano/Solana/etc. There are PoW cryptocurrencies like Monero, Litecoin, and many others that have community-driven development and institute a less dangerous emission schedule than Bitcoin.
> This person’s real concern appears to be “number go up”. It seems to have infected their thinking. They see a system that decided to engineer for NGU instead of stability and confidence, and thinks that’s “not leaky”. It is extremely short sighted.
This is a misreading of the post. The problem is that (this is an over-generalization) bitcoin's resilience to attacks requires that the price of bitcoin increase twofold every halfening, or the relative hashrate to some outside attacker will be cut in half.
>In the stormy world of crypto, Bitcoin is the port.
This is an idiotic statement. Bitcoin development has completely succumbed to corporate capture at this point by Blockstream and the likes.