Pdf files are a prime vector for malware. One of the most reliable ways to get a virus in a system seems to be sending a gimmicked pdf and social engineer it so it’s opened.

I’ve always kinda wondered how recruiters computers aren’t swimming in malware.

I don’t this is the reason. If a good portion of the users didn’t want those things, they’d be downvoted to heck. It’s more likely that a part of the reddit refugees didn’t stick around.

It’s not just that they don’t want their ads next nazi crap, it’s that they don’t want to put ads on a platform that has nazi crap. You make a platform friendly to nazis, you lose advertising.