I, too, wholeheartedly support this proposal. My case in point is How does one insert a backslash or a tilde (~) into LaTeX? which was migrated from Stack Overflow to tex.sx in January 2011.
Right now, the question still has the third highest number of upvotes at tex.sx (98), has generated the answer with the highest number of upvotes (119) and has about 70k views (the runner-up question has 27k). At the time of migration, it was a menace to tex.sx's benchmark of what constitutes "Good questions" and "Good Answers", and resetting the question's votes would have been a blessing.
