Hear! Hear!!

"deletions are not censorship but rather enforcement of the rules."

Sounds perfectly fair to me; after all, Craig provides this forum for free - anyone who objects to the rules could always set up their own forum...

"if someone asks a question and your product or service is a worthwhile solution, please feel free to reply with that information."

In such cases, I think the poster should state their affiliation (they usually do).