You must never confuse
ebay with doing anything for buyers or sellers.
ebay only does things to help
ebay.
ebay figured out that they were losing fees to buyers and sellers contacting each other, outside of the auctions. Solution? Anonymize the bidders. Result: diminished visibility for bidders (reminder -
ebay doesn't give a $*#&$), more fees to
ebay.
This actually gets carried to insane heights where
ebay monitors messages between potential bidders and sellers so that anything that HINTS of a transaction outside of
ebay will not get sent. Of course the rule checker is absolutely painful. (reminder #2 -
ebay doesn't give a #*$#&$ as to making things easy)