I wonder if there is actually a contingent of people who have Boyi's "overextending/omitting variables" definition as a connotation for "reductionist," and to what extent this affects how they view reductionist philosophy. It would certainly explain why "reductionist" is sometimes used as a snarl word.

Ok generally was a bad word. I checked out the wiki and the primary definition there is not one I am familiar with. The definition of theoretical reductionism found on wiki is more related to my use of the term (methodological too). What i call reductionism is trying to create a grand theory (an all encompassing theory). In sociological literature there is pretty strong critique of grand theories. If you would like to check me on this, you could look at t"the sociological imagination" by C Wright Mills. The critiques are basically what I listed above. In trying to create a grand theory it is usually at the cost of over simplifying the system that is under speculation. That is what I call reductionist.