She was just mocking the MRA and anti-feminist movement, but of course they took the bait and immediately claimed she was a misandrist.
Sounds like you when you claim Slashdotters are Misogynists because they disagree with a woman. Never mind the fact that the woman can be wrong (you know that's actually a thing right ? That woman can in fact be wrong on some things, sometimes ? Just checking that you know the difference between "hatred" and "Disagreement with supporting evidence"...). The point is, "mocking" people will cause those people to react to you. That is exactly the description of Trolling.
So you say "she doesn't troll!" and then proceed to give an example where she trolls. Well good job on proving the point of the person you were replying to. Jessica Valenti is a no-talent Hack that threats The Guardian like her personal Turmblr blog.