Yesterday I asked a question:
Decent Battery Monitoring App [closed]
It was closed because it's claimed to ask for shopping recommendation. Actually, I'm not asking for a shopping recommendation, but an app recommendation. Now I wonder why this question is not getting closed then?:
Must have applications for Android?
If what I asked is a shopping recommendation, then that one is asking even for more. Additionally, we have a [software-rec] tag on SuperUser and we think these kind of questions are quite useful. Note that "Shopping recommendations" are also off-topic on SuperUser.
IMO, there should be a difference (in other words, a line) between "shopping recommendations" and "software/app recommendations".
For example, this question totally asks for shopping recommendation, but it seems to be allowed here:
What are the least carrier-crippled Android phones?
What are the opinions of Android Enthusiasts on this?