Microaggressions–so tiny you can't even see them–are bad enough in feminism-land.

But now we have something even tinier and even worse: micro-passive-aggressions.

Credit ultra-feminist Jessica Valenti of the U.K. Guardian for discovering this shocking new form of misogyny: not following female tweeters on your Twitter feed. That's "passive sexism"–and it must be ruthlessly eradicated.

Here's Valenti's tweet about the male pig she encountered on a New York subway car:

The guy next to me on the subway was checking Twitter; he followed almost all the same people I did but NO WOMEN. Passive sexism is for real

And if that's not passively sexist enough, how about this, tweeted by Valenti exactly one minute later:

It's like when you meet someone whose favorite authors, musicians, artists, etc are all RANDOMLY male. Suspect.

Congratulations, Jessica! You've discovered a brand-new form of oppression of women: men sitting on subways or buying books and music online, all, by the way, minding their own business.

But that's the job of social justice warriors such as Jessica Valenti: policing not just the tiny bits of speech that feminists cry sexism over ("Why, you look nice today!"), but the thoughts inside people's heads. They don't care that it's kind of creepy to be looking over the shoulder and monitoring the smartphone of the stranger sitting next to you on the subway.

Naturally a bunch of people took to laughing at Valenti with their own tweets–and social justice warriors don't like to be laughed at, So Valenti tweeted in response:

Whenever Twitter gets mad at me I know I have my next column idea

Mmm, I can't wait to read that one. I'll be checking the Guardian's website every day.