Where the heck did you pull actual "revenge raids" out of that article?

They discuss the problems of civilian casualties, and needing to deal with them in the context of Iraqi culture. The British troops, as I recall, have actually paid extensive reparations for such casualties, which is according to custom.

Nobody has said any organized attacks on our forces are motivated by revenge, although it is certainly feasible that an angry person who suffered a loss would make an easy recruit for the Baathists and others. Probably wouldn't have to pay him as much.

As for the Westerners found in the ranks of the attackers...so what? The Taliban managed to attract nutballs with American citizenship, why would the Baathists have trouble doing this?