Quality of Life - Searching for empty values

Hi everyone

Please may I request as many people click follow on this wish report - I have been trying to get my fellow work colleagues to also follow this but they seem to click follow and nothing happens at the moment. 

I think it is a massively important quality of life change - surely you all will agree. Hopefully more follows means it can be looked at quicker

Bug info - Wish: possible to have criteria field value "Is (not) Empty"