This is a part of a larger chandlery site called SailboatOwners.com.
I have bought gear from them in the past and found them to be honest. They have sections of their site for owners of different brands of boat to post messages.
This quote from their home page gives you an idea of what they do:
"Get site news
Get our newest discussions, quiz results, expert tips, sales and new products delivered to your inbox every Monday."
I check in for interesting stuff about once a month at that site, but EY.org is where all of my boat-related conversations take place...
FWIW, here is another "chat and commerce" web site:
http://www.sailjazz.com/
And, of course:
http://www.sailnet.com/forums/cmps_index.php
Actual owner-controlled sites, without commerce, are a lot more rare... and valuable (!), like this one.
Best,
Loren