Maybe you had a link on your comment and links are not accepted at this website. Maybe there was a word or two or three that triggered it. For example, if you had the word ‘H!tler’, your comment will be rejected. This is not a human who is manually rejecting your comment but the program. Notice how I have changed the spelling of ‘H!tler’ by changing the I into ! – or else you would not be seeing this comment.