what made /qa/ the best board on 4channel, and what makes /quant/ the best board currently, is how we take the best of other boards.
We are:
>/b/ with the creative random posting and without the shitty porn/gore
>/adv/ where someone can ask a question and actually get a decent reply
>/a/ where anons here actually have good taste in anime
>/sci/ where anons here actually are smart and not shilling mainstream science and theories
>/jp/ without the fake otakus
and many more. this is why /qa/ and now /quant/ are the best boards