Why is it?

So why is it, that when I try to complete transactions via PM with another member, for some reason??? he/she can not link to my email addy that I posted?

Just trying to keep myself in good standing.
When I purchase/sell/trade I stand behind my word 200%!

So when I give another member my email addy and phone number(S).

Why is it they can not contact me via email???
Needless to say I'm trying to stay away from PM's, as I'm trying to stay logged off from the site (for numerous reasons).

WTF is the scoop?

Regards to all you faithful,
Giles