Red, I do not know of anyone who has stabbed well and had their name tarnished. A good stab, a clever stab if you will, is often applauded in the post game even by the victim. I forget who has it in his profile, but the gist of his paragraph is," if you're going to stab me, make it worthwhile. Cripple me. Be clever. But don't just take a center because you can. "
I myself still struggle with when precisely to stab, which seems to be the hardest learning curve for all diplomacy players. For example, semck likes to stab right out the gate (
gameID=82542), and he's a seasoned player!