Colloquially, something desirable meant to lure targets into a trap, e.g. food on a fish-hook.
In the context of online discussion, it refers to poorly articulated and inflammatory opinions posted for the sole purpose of angering and provoking a response. The actual validity of the arguments exchanged is
completely irrelevant, though baiters will often open with very poor arguments to tempt targets into an obvious rebuttal.
It's a powerful form of
double bind, because:
1) Ignoring the bait makes
you look like you're capitulating and "have no good response".
2) Answering aggressively opens you up to mockery about being butthurt or defensive.
3) Any calm, coherent response will be ignored, and might lead the baiter to escalate their provocation.
Regardless of how you react, these discussions are deliberately meant to waste your time and energy.
- "I can't believe how stupid
this guy is, he's completely misrepresenting my
position and-"
- "Dude, it's clearly bait.
Let it go."