I'll abide by any rules the moderators set down, but here's why I'd rather not see guests be prohibited from posting. I've been a member here for close to 2 years now, but you'll notice this is a guest post.
Why is that? It's simple, I'm at work right now on a computer that doesn't belong to me. For that reason I'd rather not have a Mudcat cookie in a work computer and even if I did, that would require having 2 screen identities, something I believe IS discouraged. I've seen other members posting as guest sometimes. One regularly posts as guest using her Mudcat handle followed by "pretending to work" which is kind of cute. Others might be travelling or borrowing someone else's computer etc.