Say what you will, but there's a lot of good answers to real questions people have that's on Reddit. There's a whole thing where people say "oh Google search results are bad, but if you append the word 'REDDIT' to your search, you'll get the right answer." You can see that most of these agents rely pretty heavily from stuff they find on Reddit.
Of course, that's also a big reason why Google search results suggest putting glue on pizza.
You can't mean the bottom-of-the-barrel dross that people post on Reddit, so not sure what data you are referring to? Click-stream?