I am a fan of the _idea_ of only charging for cosmetics customizations instead of hiding actual game content behind paywalls, but the way that Valve and others have implemented it in practice is highly predatory, because nearly everything desirable is hidden behind an opaque wall of RNG instead of just put up for direct purchase for a known price.

This is how you end up with gambling addicts blowing thousands of dollars for a virtual in-game skin, and it has enabled a vast network of grey-markets gambling operations to fuel those addictions [1].

It can be difficult for normal people (who mostly just enjoy the gameplay and maybe once in a while splurge on a few dozen bucks to make our virtual avatars look nicer) to emphasize with people who have real gambling problems, but that doesn't make it any more ethical to exploit them so blatantly.

Hiding these gambling platforms behind the veneer of innocent-looking games also exposes gambling to a younger audience that's much more susceptible to predatory tactics often used by gambling platforms to build up their addiction. There are pretty good reasons why gampling is a regulated industry, and online games that employ these kinds of systems are way overdue for some oversight.

[1] https://en.wikipedia.org/wiki/Skin_gambling