It's true in my experience. However, that may be because I really only encounter anarchist theory online. In person, any anarchists I know are just busy doing stuff.

My experience has mirroed yours. I will not talk politics with my anarchist friends.

for my part, I'm actually in anarchist spaces offline and it can be really hit or miss.

Some of the ones that I just don't talk about complex subjects with are the same ones who when they did embrace reading it was only after they went on Reddit to find "what should I be reading as an anarchist" and ending up reading a bunch of sectarian texts from a hundred years ago, glorifying figures that should be cautionary tales. The other kind in this category are the ones fresh out of higher education, thinking they now know how the world works, but not having enough life experience to question liberal academia itself yet.

My entry was via queer theory and a fair number of communists, there's definitely others out there who have a hard time fitting into Marxist orgs (for a variety of reasons) and gravitate to anarchist spaces for organizing.