It seems that whatever AI you are employing to screen comments has a problem in HOW it evaluates words. From what I've seen the software screens words by letter sequence, rather than by WHOLE WORD.
For example, I attempted to submit a comment that contained the word "analysis". My comment was rejected, presumably because your system scanned the word "analysis" and STOPPED after reading the first four letters, which spell out "*".
This is a serious flaw. There is absolutely NOTHING wrong with the word "analysis", since it in no way has anything to do with "*", at least to anyone who understands English.
You need to FIX THIS flaw.