This happens to me constantly. Just the other day I asked some friends for something and then they sent the literal exact opposite of that thing. Pretend I asked for blue with red stripes they gave me green with yellow polka dots. And it wasn't just one person it was three separate people who all decided that made sense for some reason.
I was extremely specific too, even more than usual because I know people constantly misinterpret me. I made extra sure to not use any language with vague meanings and it still happened anyway. It's like we live in alternate realities where words have completely different meanings.
But paraphrasing is not copyright infringement either. It's no different than Wikipedia having a synopsis for every single episode of a TV series. Telling someone about what a work contains for informational purposes is perfectly fine.
Yeah it can certainly cause problems, it's just not ADHD.
ADHD doesn't even really mean short attention spans, it's more of the inability to willingly direct attention. It's the same way people incorrectly use "OCD" to mean liking things clean and/or orderly.
I have ADHD and I've had times where I've done the same thing for 14 hours straight (even forgetting to eat) when my brain decides it wants to latch onto that thing. You just need to be sufficiently stimulated, hence why stimulants can work as a treatment.