I'm with you: I was wondering the same thing. Some people are downvoting your reasonable and polite comment voicing a sensible concern. This sort of downvoting activity directed towards quality comments are ruining this site by trying to create a popularity club where conformity to groupthink is enforced through the threat of downvotes.
As far as App store goes, many programs will never be available on the app store. Customers who think that represents a significant burden and want to write long essays about that are not likely to be the sort of customers you want any way.