Ought to I be fearful?

I obtained a random invite from this dude (not even on my pals listing, has 0 gamerscore, is in an invite-only get together or no get together, and is on xbox app), despatched him a message asking him why and I've but to get a response again. I'm a bit paranoid of becoming a member of random invitations that aren't from posts I've joined so I didn't be a part of the get together. Did somebody actually make an alt account simply now to curse me out in a celebration or one thing as a result of I killed them in Unranked Squad Zero Construct?