Ever since getting burned by Hugo (https://twitter.com/danluu/status/1244023627613274115, etc.), I've made mental note when I see a maintainer complain that it's stupid to waste effort on backwards compatibility and I don't use their software.
I don't think this would've saved me from Hugo since I'd never heard of the author before they wrote Hugo, but even in just a few years, these mental notes have saved me from software that constantly breaks at the maintainer's whim multiple times.
I don't think maintainers should cater to my whim — if they want to write software that breaks all the time, they should do it. But, per https://www.patreon.com/posts/27662175, I want to know that's their attitude so I can avoid their software.
E.g., with Hugo, literally everyone I know who uses it runs some ancient version because the amount of work it takes to migrate is greater than the effort to write a custom SSG, but this means their site has all sorts of annoying bugs because they don't get bug fixes.