Sorry for the confusion. We are all learning how to tools work.
I know that newbs dont know how anything works, so direct response seems reasonable, but I think a less spammy way of accomplishing what you are trying to do is just a single post with the introductions hashtag.
This is kind of funny really. Some guy in the past did a really really really long post that made the feed shitty and I also reported him. No idea that it shows up as a post.