You are still not understanding the issue.
LLMs cause a lot of people to unknowingly violate copyright, and those people then become easy targets for malicious copyright litigation. And Codeberg is caught in the middle of that and doesn’t want to be involved in the resulting mass legal cases because they are just a small volunteer organisation without a legal team.
And Codeberg’s explanation is very clear that is isn’t a blanket ban on LLM generated code for “purity” reasons. It is a risk mitigation strategy against projects that are mostly LLM generated.