In case you might be wondering why you don't get huge number of upvotes and comments on this, some of us have seen it before. Here are a some of the previous submissions:<p><a href="https://news.ycombinator.com/item?id=599164" rel="nofollow">https://news.ycombinator.com/item?id=599164</a> (+)<p><a href="https://news.ycombinator.com/item?id=1310127" rel="nofollow">https://news.ycombinator.com/item?id=1310127</a><p><a href="https://news.ycombinator.com/item?id=1327746" rel="nofollow">https://news.ycombinator.com/item?id=1327746</a> (+)<p><a href="https://news.ycombinator.com/item?id=1475826" rel="nofollow">https://news.ycombinator.com/item?id=1475826</a><p><a href="https://news.ycombinator.com/item?id=3503896" rel="nofollow">https://news.ycombinator.com/item?id=3503896</a> (+)<p><a href="https://news.ycombinator.com/item?id=3507566" rel="nofollow">https://news.ycombinator.com/item?id=3507566</a><p><a href="https://news.ycombinator.com/item?id=4586462" rel="nofollow">https://news.ycombinator.com/item?id=4586462</a><p><a href="https://news.ycombinator.com/item?id=5129062" rel="nofollow">https://news.ycombinator.com/item?id=5129062</a><p><a href="https://news.ycombinator.com/item?id=5377944" rel="nofollow">https://news.ycombinator.com/item?id=5377944</a><p><a href="https://news.ycombinator.com/item?id=5695816" rel="nofollow">https://news.ycombinator.com/item?id=5695816</a> (+)<p>I've marked the ones with some discussion/comments.<p>It's also here: <a href="https://news.ycombinator.com/item?id=5728844" rel="nofollow">https://news.ycombinator.com/item?id=5728844</a>