[throwaway5250]

Indeed, but not just pseudonyms, as over a surprisingly short time, you'll almost certainly uniquely identify yourself. You really need to be using and rotating "burner" usernames on a quite regular basis.

Unfortunately, some sites forbid this to varying degrees. HN perma-banned my primary IP address because I was rotating several times per year. As is their right. But savvy people will generally stay in lurk mode as a result.

Maybe that's the future: Most posts by bots, most humans reading only.