Left 4 Dead has a stupid way of finding servers, and has it's fair share of idiots.

[bledd]

that's what i do too

makes it a lot easier when everyone uses the [OcUK] tag

 

[4T5]

The ocuk servers are always full, I find it virtually impossible to join you lot

Start a game on your own & invite everybody online in the group. Before you know it [OcUK] will be there
Even if you have to play for 5-10 minutes alone it is far better to wait to be joined by [OcUK] than it is to try a game with randoms.
You can also post in the L4D thread stating "Whose up for a game Now"