That, or if they're like me, the person is just very tired. If I am extremely tired, I basically just hit shift on every word and don't care about it. In such cases, I might fix my posts and comments in the morning, or even delete them if they feel too much like "what the fuck did I write there".
Another key to identify those is double words.
Example: I Only Started Started Using Computers When When I Was 14.

I type on a mobile keyboard. Have for over a decade. I’ve never typed like this.

I see this more often from people for whom English is a second language. Maybe that’s the case here?

https://en.wikipedia.org/wiki/Plenken

In German, the practice of inserting a space before punctuation marks is called Plenken. It used to be a common practice, but nowadays it is considered an error.

I don't think the All, Refuse, See, No, and Never in that screenshot are nouns. They also didn't capitalize microwave.

Yeah, I see people use commas as pauses where commas definitely aren't supposed to go and that make no sense whatsoever (to me, anyway, but I know not everyone has the same education, resources, etc.) all the time. I think that's part of what's going on here.

It sounds like our brains work very similarly, fellow random-parentheses-using scatterbrain! I'm both glad I'm not alone and also sad that you experience this frustrating shit, too, haha. I feel for you.

I much prefer the way you break up your thoughts, by the way. It flows better, makes more sense, and reads in my head voice more like it would if you were speaking (to me, anyway!)

Okay there, Kerouac.

So your speaking voice is grating, and you type the same way on purpose? Why? Just to mentally exhaust everyone around you? Is this a BDSM thing?