Can't comment on other posts, able to comment on own
There is a question on Stack Overflow which has been answered but there are some aspects of the answer (and even a statement in the question) that I do not agree with. When I started to type in the "Your Answer" textbox, a message was displayed saying that I should have an answer to the question and not just a comment because this is not a discussion forum. I do not have an answer but what I have to say is relevant to the question. Where and how should I add my comments?