Defend the impact and effort claims

[jyasskin]

I don't see any assigned meaning for the "low", "medium", and "high" ratings, and no explanation for why violating each guideline has the claimed impact. Why should readers believe these claims?

[AlexDawsonUK]

This is one of many pieces of feedback we have taken a lot from (here, the slack conversations, etc).

We absolutely intend to improve upon our measurability credibility and provide a more scientific index than having our current "group consensus" based targets (which granted were fine to get us off the ground, and have subject matter expert backing - but hard numbers is what we need). We are aiming to put in place a way to accurately measure the impact for the WSGs over time and be able to therefore provide a scoring system that is based upon reliable data.

More details will be provided at a later date but suffice to say that measurability (#104) is high on our priority list and will hopefully become a key player in our specifications development.

[AlexDawsonUK]

This previously open issue is now under the review of the Interest Group, discussion and resolution will continue there.