# What is expected/customary procedure for crediting info from comments?

Is there a generally accepted procedure for crediting info that someone suggests in the comments of my answer. Should I write something like "@coolrpg points out..." and then the info that user CoolRPG suggested I add in their comment. Or is crediting another user not expected?

# There's no formal (or informal) policy, but it's usually nice to do

As the header mentions, there's no real policy around this. When someone suggests a change in the comments, the answerer sometimes edits their answer per the suggestion. Some people credit the user who suggested the change; some people don't. I don't think there's really any policy or even custom/expectation one way or the other.

It's generally a nice thing to do when the answerer credits the commenter that suggested the change, but I don't think anyone takes offense if they're not credited. After all, if the idea's substantial enough that they felt they deserved credit for it, the commenter could have left their own answer suggesting as much. For minor changes, it's rarely important enough to give special notice.

So do it if you want... Or don't. It's fine either way, in my perspective.

• Ok, so it's not frowned upon either? It was actually a suggestion from you that I credited to you that made me consider asking this question. Mar 5 '19 at 5:35
• @lightcat: Nope, it's certainly not frowned upon. I think the only way it could be a problem is if you credited so many people every other sentence that it made the actual information hard to read... :P
– V2Blast StaffMod
Mar 5 '19 at 5:36

I asked an extremely similar question nearly 5 years ago, shortly after I joined the site, and, since then, I've adopted a couple of behaviors:

• As comments are both ephemeral and nearly the only form of constructive criticism an answer or question can receive, when a comment has a decisive impact on an answer or question, I'll credit the comment's writer with a link to that user's profile. That's both to acknowledge the comment writer and to provide the reader with some kind of indication of the comment writer's site credentials. The comment may disappear, but the profile's largely forever.
• However, what I want to do more often and forget to do all the darn time is credit a user who makes a valuable comment on one of my questions or answers in the question or answer's Edit Summary. I assume folks who really care about a question or answer do occasionally check in what way a question or answer changed over time, and crediting a user there seems to me the least obtrusive yet longest-lasting way to credit a user. (Later edits to a question or answer can remove the credit I've given other users in that question or answer; nothing, so far as I'm aware, changes an Edit Summary.)
Note: The @username doesn't ping the user when put in questions or answers; just use username instead.