Typing in lowercase is rude/dismissive? Many many many people chat that way and I don’t think it’s typical for people to find it rude

(I am on my phone so autocorrect is doing the capitalizing)

I grew up on IRC and that was just the way to talk, so it seems totally normal to me for async chat-based stuff. Actually, it’s odd, when someone uses proper capitalization on chat, it feels all “formal.”