I hate it when subreddits have certain filtered words that'll instantly remove your post if it has one; but don't tell you what these filtered topics or words are.

Like, I can totally understand having filtered words to make moderation easier; but you could at least tell us when our posts has one of these filtered words (some subreddits actually do thankfully). I'm not trying to do guesswork trial and error to find out this one forbidden Voldemort word that some random mod decided was too much for the subreddit.