No platform ever should allow CSAM content.
And the fact that they didn’t even care and haven’t want to spend money for implementing guardrails or moderation is deeply concerning.
This has imho nothing to do with model censorship, but everything with allowing that kind of content on a platform
What Reddit did get a lot of negative public publicity for were subreddits focused on sharing non-explicit photos of minors, but with loads of sexually charged comments. The images themselves, nobody would really object to in isolation, but the discussions surrounding the images were all lewd. So not CSAM, but still creepy and something Reddit tightly decided it didn't want on the site.