I don't work for FB, nor am I in a position to demand big data flows from someone else. I'm just intensely curious about the dynamics of commented discussions and think it's an under-studied phenomenon. I'm not interested in making money out of it, I just want to understand how ideas promulgate and what factors drive virtual communities.
I was confused by the original post because a) I'm not sure why using SQLite makes comments into 'not big data' (is it extraordinarily hard to get statistical information out of SQLite or something?) and b) even if a blog or website is completely private, might not the owner want to analyze what's going on within the private social network they've created?
Also, I question your blanket assertion about what is or in't in the interest of other people. You seem to have taken my prior comment as an intent to exploit comment data for financial gain.