As I am the one that asked the question, I would like to take the first stab at defending the question. Others have already spoken up, so I will not speak for them.
To start, let's discuss the fact that I know a thing or two about StackExchange and I wouldn't have asked this question if I didn't think it was a good fit. I don't have a habit of asking throwaway questions because they are fun to overload the mods with. I did consider that the purpose of this site is for recommendations (granted, most people are looking for specific software, not how to recommend software) but I also know that this question has very specific implications (security, experience). So let's don't go with "what does this person know about our StackExchange site, crucify!" but instead consider the merits of what I'm looking to achieve with the question. Which is my second point:
This site is still in beta. This is still a good time to define what this site is all about. We should be posting well-written guiding questions that other people can look to to learn from. Yes, this question strains credulity for some folks, and that's fine. I personally am against operating system recommendations, but I am not the dictator of this site, we are a community that wants to grow what is acceptable.
Lastly: I don't think this question can be too conversational or opinion based, I feel like there are a few experts in this field that can share their opinions for the rest of us to learn from. I would like to learn from those people. This site is a good way to do that.
Thanks for hearing me out.