I'm not sure if I can re-make my thread since it was locked, but it made me think of another suggestion, which is why would you lock a thread for posts by other people in the thread, or the posts other than the main OP? Wouldn't that just allow people to use that to lock threads of people they didn't like? It would make more sense to just infract anyone breaking the rules rather than locking the thread and preventing reasonable discussion if the OP isn't against the ToS and it's just posts after.
Also I don't think posts would need to be differentiated, if I was the only one who couldn't see their posts, but they could still see mine, than that shouldn't impair their ability to moderate. There wouldn't need to be a lot of extra work put in, you could just prevent it from blocking any information that could help them moderate, still allowing personal messages if needed. You wouldn't have to separate regular posts from moderator posts if the ability to not see posts was one-sided to begin with.
Please don't rant about mods. I'm not here to mod bash or discuss how they moderate, I just want to not see posts.