Flamebait is irrelevant as a word anymore. It's the same thing as "troll". It used to be a great verb for a very specific thing. But since ignorance and fear of missing out on using it have meant it has lost near all meaning. The "troll" word just means anyone who you disagree with to lots of people now. Shame really. Same with flamebait. It's just anything you don't like, or might upset you. It's not actually the quality of the comment that is being criticised.