...It's just a +1. I think it'll be fine if this was added again. Rushed answers wouldn't be a big issue as it's just one point. It'll also probably invite users to answer more. If their answers are good, they get upvotes and BAs, which automatically gives them extra points.
And about this suggestion, it's an awesome idea. Getting a BA is way easier than an upvote. Having access to wall posts makes communications with other users, especially staff, easier and smoother. I'd love this to be a feature.