I actually think that might be a side effect of when people in a pedantic mood run into each other. I've noticed it a lot on INTP Central, where one person makes a big deal out of a minute detail by trying to correct it. Then someone else comes by and corrects the correcter even further. Then the original correcter returns with trying to gloss over the whole thing. I imagine that once a pedantic person is corrected, it's their natural instinct to try to save face by becoming counter-pedantic.
I hadn't thought of being pedantic as being meticulous. I've seen it as more of an attention grabbing behavior or ostentatious. Since it seems to be a "show offy" behavior, it would probably be associated with "image awareness". So if not associated with type, could it be one of those enneagram 4 things?I wonder if being pedantic/meticulous might be a trait separate from type?