How do I edit or delete posts?

[Billy]

I could've sworn I was hitting the FAQ section and I ended up posting this same exact topic in the Opinions section. I would delete but I can't figure out how, just like I can't figure out how to edit anything. Is there a section of the site that explains what should be simple things like editing and deleting?

Okay. The edit button is there now, but only on SOME posts. I'm using it now to edit. It's still not there on other posts. And still, I can't find a way to delete posts.