I'd echo your comments on this. I started out using Qlik a year or so ago and I agree with you that the community is great and responses are useful I think this would have a great deal of value. I recently transferred into an Business Systems Analyst role from prior non-IT roles, supporting an ERP system and implementing Qlik as the BI platform. I think being in the role for a year now I have made great progress but also having had a year to reflect this sort of thing would have helped immensely.
Oddly it's the small things that prove frustrating, understanding the behavior of different functions and simple formatting.
Did you get any other feedback on here or elsewhere?