For me the most important thing is that something is free software. I've seen people advertise proprietary stuff in this community and have reported it, and nothing has been done. I don't know if that means my reports don't federate properly or if it's tacitly approved by the moderators. I know in the degoogle community there are "trusted' proprietary apps that are often recommended but this should not be the case in a free software or open source community. In any case, any rule that bans "AI slop" while allowing proprietary products is in my mind backwards.
Regarding "AI slop" I am generally in agreement with Codeberg's policy which states,
You must not share projects that mostly consist of code written by "generative AI"-tools (including services such as Claude, OpenAI Codex).
I suppose "mostly" is up to interpretation but for me this specifically targets vibecoded apps where there is no or very minimal human involvement. This may be heterodoxy but I actually don't think "an otherwise human-written codebase with a single line of LLM code" is the same thing as an entirely LLM generated codebase. I think there's room for nuance especially if the usage is disclosed (I don't think punishing transparency should be encouraged).