Agreed, but I am still baffled by the decision from FaceBook to switch this on by default.
Quite why Facebook built this feature into its location offering in the first place I have no idea, but tagging other people at a places without their permission is just plain rude so let’s nip it in the bud.
Sure, it’s easy to block others from doing this to you in your privacy settings, but it’s switched on by default. So, if we were friends on Facebook I could check in at a location and, without your permission and regardless of whether you were actually there or not, I could tell everyone else you were with me.