Instead of /communitye/forumname/post-title I'd like to have post URLs (permalinks) like /community/forumname/123. How to do that?
I see, so it inherits WP permalink settings. What if I want to configure forum posts specifically? Thanks.
Page url and (meta) title are the most important basic in-site SEO. For ages now, and that doesn't seem to change.
Not a wise decision to replace that with a number. Why do that? No reason at all.
The other point is URL SEO isn't really about "let keywords show up in URL", that's important of course, but not the whole story, it's also about URL friendliness (usually shorter the better).