[CQ-Contest] Missing E-mail Addresses

[Pete Smith N4ZR]

During last weekend's 10-M contest, I worked a DL station who was loud 
but T8, with a pronounced buzz on his signal.  I went to e-mail him to 
tell him about it, but alas - no e-mail on any of the usual sites.  In 
hunting for him, I found a number of DL stations that omitted e-mail 
addresses from their QRZ and QRZCQ pages.  What gives?

-- 
73, Pete N4ZR