I'm not sure what the first problem is, but this:
Also, I tried to post in a thread earlier today but when I clicked post, it said that a forum moderator would review my post. However, I then commented on another thread without issue.
I tried to post a new thread about those issues here, but again it said that a forum moderator would review the thread and then I have not seen anything posted...
...is quite normal for new joiners. It's not just the number of posts, it's if the post contains links and / or certain keywords as well (that might be associated with spam).
SD