Re: what'd got to lose?
As someone who enters comments on Facebook from my phone, I can tell you that between clumsy thumbs and "helpful" autocorrect that takes a mistake and renders it into an entirely different mistake, this is not uncommon on Facebook.
Compared to a lot of the comments I've seen on posts, these responders are downright articulate.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.