Why is it so hard to buy parts from people

That's not just CL, that's one part of my general life's philosophy.

I guard my cell phone number carefully and understand guarding my address.

NO WAY do I give out my phone number until I know if I'm going to deal with a person or not.

I don't understand why people have a problem with CL's encrypted email, or why they don't understand that they can answer email at their convenience.