Sometimes runtime is not the ultimate criterion. What I mean is yess add new way of sorting solutions by runtime it is going to be great! But do not remove current tagging by doing that.

Sometimes readability is more then fast execution. But yes I totally agree to you. I signed up here because I wanted to see not just how others solve some problem but also what solution is considered "best" by majority. Then I expected there to be microforum for every kata where discussion about why this and that is better. Simple "best practice" tag without comments are often not there yet. There is lot of work to be done...

There is a requirement to round the result yet it is not tested by final test cases. I forgot for a while and submited solution without formating which was accepted. Solutions of other warriors are how we learn stuff here. Therefore we should try not to let "wrong" solutions pass the tests here ... I think :)