Basically, I read the question as: "on a scale where 1 is the worst direct messaging app you ever used and 10 is the best you could imagine, where does this one

Basically, I read the question as: "on a scale where 1 is the worst direct messaging app you ever used and 10 is the best you could imagine, where does this one rank", and not "Do you enjoy using this or do you think these apps should even exist or be part of people's workday"? Is slack better than Skype and MSN? Goes a good way towards a high grade for me.