I'm thinking of bailing on my rent for the last month and stiffing my roommates and I don't even feel a bit bad about it.
That doesn't sound fair. Is there a reason why you want to do this to your roommates?
They were annoying to me when I was living there
You shouldn't skip rent you agreed to pay on. Your roommates could find you and take you to court over unpaid rent.
In the past I skipped rent and told them I'm moving out and never heard from them again.
Think about how it would feel to have one of them stick you with their portion of the rent. Do you really want to put that burden on them? I think it would feel a lot better if you just paid rent like you're supposed to.