The entitled abuse you get as an open source maintainer. Like, dude, I don't give a fuck if some internet rando I never heard about uses my software, or if they make a fork nobody will ever know about. I spend my weekends and evenings developing this because it fills a gap in the market that I personally need. If anyone wants to use it, be my guest, but I have zero tolerance if you choose to be a toxic asshole about it.