You absolutely have to list your games there because many people will refuse to buy your game anywhere else even if you are listed on more player-friendly DRM-free platforms like GOG or itch.io. Yes, I get that players want to use one launcher for everything but with DRM-free, you know what? You don't need launcher! Just download and play!

For the hefty 30 percent cut they take from devs, I would at least expect them to do some basic curation. They allow so many asset flips and general trash games to flood their listing making it very hard for players to find good indie games.

Plus, censorship is a bit of a hit or miss. You see some very sexually explicit titles on steam but then again even relatively harmless stuff can get you flagged. This creates an insecure situation for devs in certain niches and not just erotic. For example Visual Novels can be easily flagged for having a certain art style. Artistic freedom and monopolies never mix well.

[0] (Please no "Actually, it is not a monopoly...". Yes, I am using a broader definition of monopoly on purpose. )