Good idea in theory. I think a good way to promote activity both inside the org and encourage new members to join would be to have something like this "move of the week" and spread it out to the community, don't contain it within TA alone. Of course, this would then raise the question of providing the winner with some sort of reward (more than, say, a pat on the back and letting them tell us what the next move will be) like TC because your average dude that plays Toribash doesn't give a shit about real moves or TA's "forbidden moves."