I'm 99.9% sure it's a specific person who's doing it just to be petty and I am so fucking irritated that someone would narc on me to HR for being on my phone during work just because I didn't take kindly to them talking down to me like a dog when going over paperwork mistakes with me a few weeks back
I talked discreetly with someone I can trust about it and they were pretty shocked that I said they had reported they felt "unsafe," when multiple people who know me describe me as a teddy bear. It was pretty gut-wrenching to think someone feels unsafe around me because of misunderstanding me because I've been through that before, but the more I think about it the more I feel like someone is trying to weaponize the HR process against me because they don't like me.
Just another reason for me to get the fuck out of this shit job
Until you escape just keep your head down by pretending you don't even know who this person is (hope you haven't told HR your suspicions yet... definitely don't).
If this continues, every time you go in hr just feign ignorance, look like feckless workerbee and lie like you did when you interviewed for the position...about how you love working, and you love your team,the company... Yaknow the game. The good news about HR is they aren't there for the complainant either and they just added another mark on their record (unlikely it is the first) as someone who doesn't work well with others.
I won against my useless boss in her petty hr war by doing precisely this.
Oh, I'm not stupid. I discussed it in private with one of the only coworkers I can actually trust and I know he won't blab about it to anyone, and the only other people I've told are my girlfriend and my older brother. The person in question I don't really feel like I'm on speaking terms with anyway and I've been avoiding them for a while. I'll just mask extra hard from now on and go completely emotionally dead unless I'm with a customer. Time to armor up again.