If it really is that offensive to Jewish people overall, then by all means try and get people to stop using it, but the big clampdown has to come from the Spuds. I live in an area where they have strong support and virtually all the ones I know like the "Yid army 4 life" Facebook page, and there are plenty of others. Yesterday in Enfield I saw a car where the number plate had a Tottenham badge on it and the last 3 letters were "YDS"