If they are not logged in as users, how would you relate an entry to the original poster so they can edit it?

Hi Matheus. Interesting question. If you don't need to associate the form's entries with any specific individual, maybe you could create a special user role and then set up the form permissions to let anyone with that role to edit the form's entries? You'd have to have a way to assign people to that role, but that's super easy, and wouldn't require a lot of back and forth. Potentially huge security risk, and maybe a site maintenance nightmare, but maybe not! Just thinking conceptually. There'd be no entry ownership and people may likely overwrite each other's edits. You could easily test that out, though. Give it a shot and let us know how it goes!