You did nothing wrong, but the answerer didn't want to make those changes
Hi, I'm the mod who deleted those comments (and others) in response to NLN flags from the post owner. We generally take those as "I've decided not to implement these suggestions" (in the case of no edits) and delete the comments (suggestions which will not be acted upon are ...
Yes, it is worth flagging them for attention, because mods don't view every question and answer every day, so it's how they would know that the comments haven't simmered down in this case. It's unfortunate that only mods can delete comments, but comment deletion is an important part of curating the site, so flag away (one per thread with a custom reason of &...
Answers must answer the question.
From the help center article on answer deletion (italics mine):
Answers that do not fundamentally answer the question may be removed. This includes answers that are:
commentary on the question or other answers
asking another, different question
“thanks!” or “me too!” responses
exact duplicates of other answers
barely more ...
I think I've found the answer to my own question in the Help center's guidance on comments:
When should I comment?
You should submit a comment if you want to:
Request clarification from the author;
Leave constructive criticism that guides the author in improving the post;
Add relevant but minor or transient information to a post (e.g. a link to a related ...
There's no one way to handle this. Clarification can mean so many different things, best handled by different action. As a general note, the cost to leaving valid clarification requests up is pretty minimal.
The key idea when handling questions (or answers for that matter) from deleted users, is the utility to future readers. This concern is always ...
Let me start with: I get you. I really do. I also flagged a lot of obsolete comments (and still remove such). So, I'm with you that obsolete comments should be cleaned out. But, they're a fairly low priority. Site design already does a good chuck to minimize the noise from comments, so removing comments is more like polish.
I'll try to offer some thoughts on ...