I agree – guest blogging is a real danger zone, and I think some people are ploughing a lot of cash into it without really planning a strategy. Guest posts have to be accepted in terms of quality over quantity, and you make a great point about researching the source before approving the post.
Nerds like me understand that what these things mean is that someone, somewhere, usually at the behest of some white, straight, male-identified fucktard capitalist, intentionally broke software that was previously working just fine without these arbitrary and artificial restrictions. We hate them for intentionally breaking beautifully engineered, genuinely useful and empowering technology, and you should, too.
You are the second person to mention WPX Hosting to me. I have to check them out now to see what the buzz is about. There are loads more hosting providers to be included. But with most things, I take a Wikipedia approach in the sense that it always improve and gets better.