That's indeed one of downfalls of the current Battle.net. Inside, there is no sense of community. I'm often the only one saying 'gl hf' and 'gg' at the beginning/end of games and it can be quite discouraging at times.
The amount of cheese there seems to be has gone up lately, 9/10 games I play I have to defend against some kind of early rush, be it Void Rays, 2-gate, 6-pool, Marauder 2-Racks, bunker proxy etc. I'd just really like to have some good army vs army games for a change.