I add 'edit' once I think someone will have seen a comment, and certainly once there's a reply, but if there are no replies and the glue hasn't dried yet, I often take the first few minutes to edit. Lately I've taken to including the marker "[editing...]" whilst I'm doing that, but I can't remember if I did it in this case or not.

I use the word 'scolding' quite a bit: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que..., so it's not as if I was trying to hide any tracks there! But I don't use it in the spirit you're describing. I guess I use it to slightly mock the process, including my part in it. This whole internet forum thing is mostly trivial and largely ridiculous.