In Australia we have a concept of 'tall poppy syndrome' — which comes from a cultural assumption of egalitarianism. If someone puts on airs, or considers themselves more important than others, then it is 'culturally acceptable' to cut them down to size by using a cutting comment or criticism.
When applying the concept of 'trolling' from Internet language in this context — is it 'trolling'...
- to make the original comment that puts on airs,
- to make the subsequent cutting comment, or
- that constitutes both sides, i.e. (1) and (2), just from different perspectives?
As 'tall poppy syndrome' doesn't really have a place in US culture, I'm going to ask a non-US person to answer this one.