Sure. On the other hand, someone who's used to being on the receiving end of hateful comments, and who's used to not being taken seriously when they object to them, might pattern-match the same conversation onto that expectation.

It's not uncommon for people to express derision or contempt honestly, then to back off by claiming to have been joking when someone calls them on it and they realize their contempt is not shared. Someone who's used to being the target of that sort of thing may abandon attempts to "be clearer" sooner than you'd prefer, because what's the point?

Simon: No, I didn't mean —
Kaylee: Yeah you did. You meant everything you just said.
Simon: Well, no. Uh, actually I was being ironic, so in in in the strictest sense —
Kaylee: You were being mean, is what. And if that's what you think of this life, then you can't think much of them that choose it, can you.