I think there are different incentives between the 2 platforms. Reddit is generally more focused to entertainment and that’s why AMAs or threads where people share their creepy experiences are so popular. People in reddit cares more about the comments. In steem, the posts are the ones getting more attention.
Besides, a reddit legend like this guy https://www.reddit.com/user/PhD_in_everything/ would probably be flagged on steem right? Or maybe not?
Haha I'd love to see more novelty accounts that focus on the comments here on Steem!