The main problem is that the definition of polemical is rather vauge, and that a couple of admins have exploit jimbo's words for their own agenda. Jimbo has right in that some userboxes are unsuited for wikipedia, and thou should be deleted, but the quest to exterminate them should not dissrupt the pedia more than the boxes before did.
Also Jimbo, could you please define what your definition of polemical is, according to wikionary, the definition is "An aggressive attack on or refutation of the opinions or principles of another", where is the line drawn?