Let's test this theory.
I'll make a post and see if I can edit it but nobody else can.
I can't edit any other posts as guest, so far, so good. Now let's see whether I can edit this.
I can edit my own post, but unfortunately I could modify all guest posts in this thread as well, if I wanted to, as a guest.
maybe guests should preview their posts before submitting them
I think that this would be best.
test