The kind of person who does the research and chooses to use Sourcehut or Codeberg vs just following the masses and using GitHub is exactly the kind of person who would know exactly what they're doing with computers and thus the kind of person that would not be afraid of just actually programming without the use of tools.
I don't have a Sourcehut account (nor a Codeberg account), but I follow a lot of projects that are hosted on those platforms and it's not just platform policies. The ethos is full of "we don't want that thing here". Lots of FOSS projects hosted on both platforms have their own "no AI" policy on the README or similar files.
Which is something that you would already know if you actually used any of these services.
To me, all these "oh my god, I can't believe they are not letting me host all this slop that I generated to fix my exact use case that is unique and will not be useful for anyone else" feels just performative drama.