Some time ago I left a comment next to this question explaining why I didn't think it was appropriate for this site.
The question had a bounty so it could not be voted to close. I voted to close as soon as the bounty was awarded (roughly a week later).
A different user decided to challenge my comment in a comment of their own. Since this was mostly rehashing of an argument we already had in response to their answer to that question, I decided to cut it short. They replied with a curt and a mildly rude response. I flagged it.
In response to which the moderator moved all comments to a discussion. Which resulted in the reason for voting to close not being visible. While it is expected that comments can be removed at any time, it is also expected that reasons for closing should remain prominently visible so that others, who are prompted to decide whether or not a question should be closed, can readily evaluate these reasons as valid or not so much.
I asked the moderator why the comment explaining my reasons for closing was moved to chat. The a moderator removed my question. This is a fairly curt behavior.
Just to sum up, the reason for closing is now obfuscated behind the "moved to chat" link. The "chat" is not long enough to justify being moved to chat (4 or 5 messages altogether). And the rude personal comment addressed to me remains in the chat. This put on equal footing a comment which was well within the parameters of acceptable behavior and a comment which was out of line. It seems personal.