Totally agree on the sensitive or decisive topics point, but I include a caveat that what some people call "sharing decisive viewpoints in public", others call "not hiding their gender/sexual orientation", and similar things, so it's not always perfectly clear cut.

I try to avoid being inflammatory in general, anonymous or not, and I'm not perturbed if people know my city, industry, trade, and vague interests. Basically what you could figure out from a polite conversation while waiting in line.

I've got a lot of code up on GitHub, and some of it is absolute garbage. If an employer judges me poorly for sharing my pile of one-off scripts, or "basic human decency and lack of respect for neo Nazis in a casual setting", then I frankly probably don't care to work for them.
Admittedly, other than a script that automates figuring out which web hosts are hosting hate groups, there's not much political content in my software.

I do alright, so my system seems to work.