Chuck is absolutely right ( And i have been accused of mis-using the CR list in similar ways, and i apologize if I have .. )
CR list is something like 1500 people.
If you know your message will only appeal to 0.66% of the readership, e.g. 10 "hoods customers", and you have another way to reach that readership, such as search the archives, or such as updating your own customer mailing lists, then don't bother 1500 people with you needless message!
Everything on this list gets archived, maybe forever.
Commercial spam will pollute archive info searches, maybe forever!
- Don Gillies
San Diego, CA, USA