Dear Catherine,
As you might have guessed by now, some people are profit driven. They will 
jump all over anyone who questions the benefits of CS. They have web sites 
that sell CS, CS books, CS generators, test equipment, etc. I'm sure that 
they are good people, but even good people will get aggressive if they think 
their source of income is being attacked. I don't think "Ole Bob" is one of 
those people. He might even be a National Treasure. Check out his web site 
sometime. By the way, you have a pretty nice web sit yourself.
Anyhow, take it all without a grain of salt <g>.
Best wishes,
Andy