Triple parentheses have been _extremely widely_ used by the far right for a dozen years. It's a daily occurence on 4chan, especially from /pol/, as well as being a favorite from various forums like Stormfront.

Now, there's a slight difference between you writing a comment that goes `This calculates the size of the universe (((note: absolutely fix this it runs in O(n^n))))`, and you going `goddamn I hate (((them)))` in forums swimming in white supremacists.

You are not being persecuted. If anything, hate on the far right using the dumbest fucking signals to try to "blend in".