

But I assume OP is asking about publishers on the scale of Baen or Tor, not Castalia House. There's not much practical difference between an organisation like that and a single self-publishing author (or a handful of them). Tor was founded by Tom Doherty, Harriet McDougal, and Jim Baen in 1980. This is not necessarily applicable to publishers that are so tiny and specialised that they are basically a one-person show. Tor Books is the primary imprint of Tor Publishing Group (previously Tom Doherty Associates).

There are some people who boycott particular publishers for political reasons I find their arguments largely unconvincing. It would be ridiculous for me to randomly pick a Tor book and expect to like it.) Tor is huge and publishes lots of authors that I like, but also lots of authors whose writing I can't stand. So I wouldn't dismiss a Baen book just because it's Baen. Baen has a reputation for publishing right-leaning MilSF, which I mostly don't find interesting, but they also publish Bujold's Vorkosigan series, which I love. Even smaller independent publishers publish multiple authors (dis)liking one book from a particular publisher is a poor predictor of (dis)liking others. I would never base my decision to buy or not buy a book purely on the publisher. Other than that, they're transparent to me. A dazzling panorama of presidential and political personalities, ambitions, plots, and counterplots racism, anti-Semitism, anti-socialism, and anti-communism, and the landslide referendum on FDR’s New Deal policies in the 1936 presidential election. I'm aware of which publishers offer DRM-free ebooks.
