Sure, there are always good reasons to cancel, but once you put up a website ... which in Cameron's case looks pretty professionally done ... along with your e-mail, phone, etc. then you are in a business. If you want it to be "private" as Casanova suggests in his post about Morgan and Cameron, then don't advertise.
If you advertise, treat it seriously and treat your clients with enough respect to return their calls and e-mails. In Cameron's case, she needn't worry too much about the flood of calls and e-mails. They should die down soon because, like Hammer says, it just isn't worth the hassle.
Having said that, of course there is no excuse for us pooners sending rude or disgusting e-mails to SPs. They work hard and are trying to make a living.
All IMHO
Tom