Many-many-many times, I respond to a comment - I write up an answer.. most times it ends up being a LONG response (i.e. 500-100 words). I leave the tab open. I re-read it and edit it, I do this a couple of times. When I have written up a 'good enough response', I close the tab and never post the response. I do this so I don't waste people's time with long responses, while giving me the time to think, rethink, read more about the topic, learn from the other responses and the extra reading I've done. I blame Lex Fridman (and his darn questions) for this!! :)
(but sometimes.. sometimes.. I do hit the 'reply' button instead)