I created a new Thread with the intention of being able to remove anyone's reply in case it gets off topic from the thread's intended discussion, and I think I made a mistake, too-
Since I'm very sure I checked Self-Moderated in the Additional Options, I'm guessing now that it means that any person who posts on a thread can delete their own post, whereas, if I didn't click that option, as the thread-starter, I would have been able to remove any post on the thread, correct?
I'm sure I clicked the Self-Moderated option but I've been wondering why I've been unable to see any option to delete anyone's post.
You can only delete post of others if you create a self moderated thread. The users can delete their own post from both a self moderated and non self moderated thread by you.
I'm assuming I made a mistake, and now my question is, is it possible delete the thread I already started so I can start a new one where I can delete anyone's post? In order to do that, I should leave the Self-Moderated option UN-checked, correct?
You can not delete a thread that you started. The best you can do is, remove the contents from that thread and then report the thread to the moderator telling them to delete this thread as it is a mistake.