If you read the steam forums, you probably already know this...

my beef with the change is the "Internet" tab.  The implication is that its all the servers on the internet (go figure).  So, if you have all the servers on the internet listed on the first tab, why should anyone have to check the custom one?   And nobody is clicking on the custom one.  Everyone over there wants to say that it shows people don't like custom servers.  BS!  People are lazy and not clicking the "Custom" tab.

To fix what custom server ops are upset about would be real simple.  Relabel "Internet" with "Default", "Stock", or "Vanilla".