I, too, used to be a grammar fascist.

Then I fell in love with an otherwise quite intelligent woman with dyslexia

At some point I just stopped trying to correct her to/too/two confusion

It would be nice if everyone used correct grammar. But you understood what they were trying to say, which is what made it possible for you to suggest the correction.

What I'm getting at is that I now think it's impolite to call someone out on their grammer in a public forum (I know you saw what I did, there)

The tone of online discourse has eroded so badly of late that I think it's best to become a politeness fascist now.

We don't call people out on their lisp, their tics, their stutter, their mumbling, their gait... but calling people out on their spelling online is OK apparently

The grandparent also wrote with absolute conviction but you take no issue with that because spelling, right

I'm expressing doubt that 'TeeMassive is well-informed about black bloc tactics or that their claims are rooted in truth, since they made a basic error that would seem to stem from third-hand hearsay.

Or it could stem from mere auto completion or any kind of spell checking.

Do you have a problem with grammar anarchists?