There is no "decision" really. The feature you're requesting has to be built from scratch. If we were ever to implement it, then it would have to include an option for the member to opt-out of showing what they voted for.
Are you implying that making votes public would increase the credibility of them? In any case, like any feature here on LAVA, it's mostly community driven so if the masses want it then we can make it happen. I was just expressing my opinion.
You mentioned twitter. This is something you can opt-out of. You don't have to join twitter or display your twitter name on LAVA if you don't want to.