…including, me. On that list.
I think part of what’s disquieting is that there is a “formal text English” that exists (and people know about), but people use it only in certain circumstances, like when you’re texting a group of people that you don’t know very well, and that you don’t want to offend, or that you want to seem “proper” for.
It’s temping to think that what we observe on these lists is how those people are, but every now and then someone on my list will post a message intended for someone else…and it no longer fits “formal text English”.
I suspect this language’s use is highly contextual. To me, part of the the oddness of it all is that I would almost never use formal text English in the contexts shown in these marketing images.