I'm one of the worst, you just happen to suck more.
I've fought endgame wars as static and old as w5s to the dynamic blood bath that is w60 and am leading the winning side in w56. We may be winning but our competition certainly can't be counted out, thus my post to Shaun.
For midgame I was apart of the most beautifully handled tribe I've ever seen (w56 in W2V under Rukoh)
For early game my tribe on w66 is rank 4 and climbing.
You really don't remember the delicious backstab that Rukoh, Glyn, myself and the other W2V council cooked up?
For a direct answer I find that if I perceive a lasting advantage to be gained for my tribe in backstabbing an ally I'll blindside them.
Ex: MoM - w56