I absolutely agree. I attended my husband's interview and the IO asked him where I was (I was in the waiting room). The IO came and introduced himself to me, I'm 100% positive he was verifying that I was physically there.
Self deportation would be best for those still here without status. This administration isn't screwing around and being deported is far worse than leaving on their own. Either way, not a DIY case.
It may move the needle, or it could force them into making a decision when AP (background checks) have not been completed forcing them to deny your case. WoM is a double-edged sword.