Seems like Kling is a wee bit of a chud. The claim about human rights likely stems from the "trans rights are human rights" mantra and is likely is reference to this (https://github.com/SerenityOS/serenity/pull/6814) where Kling accused a contributor of bringing "personal politics" to the project for changing one instance of "he" to "they" in a markdown file. Since then he has, for example, apparently gone on to complain about anti-white discrimination in the workplace (https://x.com/awesomekling/status/1874518295350837401).

For what it's worth, the perpetually-offended progressive has become an annoying stock character in our culture. At risk of falling for Poe's Law, the commentor on that PR who said "The denial of non-male users and/or developers is sufficient reason to not use SerenityOS" is a perfect example of this. Another more contemporary example would be the seething outrage over Last Ditch Bar's new mask-optional Saturdays.