I think everyone's going a bit off piste with this, the fact is that "yid" is offensive to some people and therefore shouldn't be used.
Being called a "Jew" (as I recently was) is also offensive, like being called a black or a gay.
When I started going regularly to Spurs the "Yids" chant made me think back to being called "Yid" at school so I was uncomfortable with it. But over time you get used to it and it seems that some supporters on here don't even know why we shout it.
It's a bit like needing to watch some crack whore getting fucked up the arse by a pig in HD to get you excited, when all it used to take was a picture of some tits on page 3. We've all got so desensitised by the word that it seems the norm being used in the context of Spurs, when to some Jewish people I know it still makes them shudder because it is a bad word no matter the context in which it is said.
Like Chris Rock once said: "under what circumstances is it ok for a white guy to say 'n*gger'?" - and I tried spelling the word but a star appeared when I submitted it. So it seems that word hasn't been reclaimed either - maybe in The Wire or to Weezy and co but never over here. Yid is just as bad a word. Where's the asterisk? There may have been an attempt to reclaim the word but there is still the backlash from racist Chelsea fans and the like 40 years on. If we stop using it now then they will forget why they sing antisemitic chants in 40 years time, just as some of our supporters have forgotten why we call ourselves the Yid Army