The autofilter will ban posts in a seemingly random manner. People who are frequent posters here will sometimes get their posts caught in the filter. I think it may have something to do with having posts removed in other subreddits.

So if you notice your post gets removed, please don't get into a huff. Just let us know, and we will either unban it from the autofilter, or, in the rare case that we removed it, we will discuss the issue with you.

Thanks, The Management.