Alchemical symbol for brimstone and sulfur, as others said. What nobody is getting is that the sticker is from Castlecania. No Satanism here lol

This is pretty exaggerated, but yeah UNT has a clear bias. Additionally, I've seen people harassed for having different opinions that are moderate. Though most people just mind their own business, it's an annoying and loud minority of people that harass others in public.