My hangup with ebay is how people present it:
"xyz product - FOR SALE!" - open the message
cgi.ebay.com.blah/blah/#asp?/crap*
Look, ebay isn't a "sale" unless you've stuck a BUY IT NOW on it.
C'mon people, it's simple logic. FS: for SALE. FA: ...
Wait, no, that'll get me in trouble with the mods.
Let's try: if you're auctioning it say so. Wherever and for whatever it is.