That's a possibility. Here are other possibilities - the US resident who originally commented may have been:
- unaware of the phrase's derogatory meaning
- aware, but relishing it, as they resent the state and don't like living there
- aware, but they think the word has a useful non-derogatory use
- aware, and has no strong opinion either way
All things which in reality would be legitimate in various circumstances. Speculating in the first place seems silly to me, and only started because one commenter apparently didn't like the idea of a non-US native having a negative opinion about the US so much that they are (pardon my bluntness) a bit overly sensitive on the issue.
- unaware of the phrase's derogatory meaning - aware, but relishing it, as they resent the state and don't like living there - aware, but they think the word has a useful non-derogatory use - aware, and has no strong opinion either way
All things which in reality would be legitimate in various circumstances. Speculating in the first place seems silly to me, and only started because one commenter apparently didn't like the idea of a non-US native having a negative opinion about the US so much that they are (pardon my bluntness) a bit overly sensitive on the issue.