Pet peeve: when a website has password limitations. Password must be less than 10 characters, or must be alphanumeric only (no symbols) - that's a common one. Hrumpf.
I also avoid the old Facebook hooks into everything malarkey. Twitter too. To be honest, I can't stand Facebook. I use Twitter. I also dislike the way social media sites want to permeate through my whole digital existence. No thanks!!!
-- Stop your grinnin' and drop your linen...they're everywhere!!!