No, it does not help whatsoever, and it took me, myself, a long while to realize that. Quoted from what I posted on the New BAT/MAT announcement thread,
' I was pretty dumb to do it myself before I got promoted.' 'it doesn't help you acomplish anything and it makes us recognise you as somebody who is only aiming for a higher position. If you're good enough quality-wise and behavioural-wise, trust me. The team WILL recognize you, so please don't say stuff like that in your signatures or user pages.'
so, i agree with what sync said; quality > quantity. don't go on a crazy half-assed modding spree hoping to get tons of kudosu then hoping just because you have a high amount the teams will recognize you.
so.. yeah it doesn't help.