"Claude write a summary of the word doc I wrote about x and post it as a reply comment," is fine. I dont see why it wouldnt be. Its a good faith effort to post.

"Claude, post every 10 seconds to reddit to spam people to believe my politics is correct," isn't but that's not the case. Its not a good faith effort.

The moderation rules for 'human slop' will apply to AI too. Try spamming a well moderated reddit and see how far you get, human or AI.