I also posted this on AIBU, but thought this would perhaps get more informed replies.
I recently applied for a role at small/medium sized company that has a couple offices in the UK. This is a professional, office-based role and the company doesn't do anything requiring special discretion or clearance/background checking. They emailed me asking me to call them to set up an interview (why can't they call me...?), and at the same time a company Facebook profile (not a business page, it's set up like a personal profile) sent me a friend request on Facebook. My Facebook page is pretty locked down and I rarely post on it and have nothing to hide, but I simply don't see why I should give this company/HR person/manager or whoever it is access to my personal profile.
I haven't even had a conversation with them yet! Isn't this kind of unusual and nosey of them? I don't think I'll be proceeding with the interview, as if they are being invasive already I imagine they are overbearing in other ways. In all my years working I've never encountered this before. I don't even like to add colleagues on social media! I feel like this is a red flag about the company.