I don't think block chain tech has achieved anything of note to date, at least anything that can parallel the hype it gained. It's rather like hyping up any other data structure like hash maps and claiming it can solve world's problems. I understand why block chains are special in that regard, nevertheless I find most of the proposed applications of it amusing at best.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.