I'd know almost nothing about software security if it weren't for this site. That's not a waste of time.
As to pushing people to become entrepreneurs: only extremely lightly, I think. Heck, I doubt if even 10% of the articles on here, much less the higher-ranked ones, have anything to do with entrepreneurship. There are a lot of people here with experience in it though, so of course discussions of such will be tainted with their knowledge. But that's what you get in a community.