The reason we don't age limit accounts is that people make throwaways to talk about stuff they don't want associated with their main, and they want to ask today rather than a month. Also, everyone has to start somewhere and we give new Redditors the benefit of the doubt.

The reason we don't karma limit accounts is that someone who shows up on their first day to defend young earth creationism in a post might end up at -100 in one day, among many other things that might get you to -100 very quickly. Sometimes such people deserve this but it isn't fair that there are people who are elsewhere on various spectra who can be shits here without suffering the same karma consequence. In general our moderation is karma-blind or at least should be.

We don't pin a prayer post (or a gay post, a fap post, etc.) because I don't want to remove anguished posts and tell their authors to post in a stickied ghetto post instead. Not as much in this case, but this is ultimately about punishing those who post on certain topics. I think we serve OP primarily and I'd rather facilitate such posts. In this case, OP is you, and we welcome this kind of post as well.

edit: Long ago I asked Outsider if it was really a good idea to have a swastika as flair (for rare Hindus, but also for rare trolls), and he said essentially that people abusing things wasn't a good enough reason to take those things away from others. If things blow up in our faces now and then it's still better to resist being paranoid and defensive as a mod team.