Some people speak with a lot of parentheticals.

We don't need speech to be a monoculture for people to understand one another.

Nothing wrong with the parentheses, I find myself doing that a lot as well. The issue is that the majority of the parenthetical statements are not useful information and not necessary to the point they are trying to make. That compared with seemingly nonsensical abbreviation and overall lack of coherent punctuation makes it an experience to read.

I don't see how disliking that poster's writing style translates into advocacy for a speech "monoculture."

I read the comment above as disapproving of the all of the parentheses in the gp post.

If you remove the posts from people who write that way from the total we are closer to a monoculture.

The difference between having one fewer way of writing and literally having one way of writing is the size of the rhetorical exaggeration in my comment

She might be a dyslexic, twelve year old whose first language is not English, has only one hand and is using a mobile.

On the other hand....

Perhaps s/he is on mobile.

"they"

Lisper?