Microchip can easily help his case by posting selfies with several of the older Q tripcodes. (Not Matlock or the other published one)
Maybe she was signaling to the committee that they were assholes.
https://www.buzzfeed.com/gabrielakruschewsky/simple-gestures-that-might-be-highly-misunderstood-abroad?utm_term=.jyZ82WAkN#.eiO1pmOXw
I've always known that sign also as the sign for "asshole"