Someone who loves learning and knowing and saying random facts??
Philomath. From wiki:
A philomath (/ˈfɪləmæθ/; Greek: φίλος philos ("beloved", "loving", as in philosophy or philanthropy) + Greek μανθάνειν manthanein, math- ("to learn", as in polymath)) is a lover of learning and studying
Your context is pretty wide. However, what you're describing sounds to me like a new, budding, form of stereotype, a sign of the times, if you like.
I might just call it data-hungry.
I'd refrain from using the word "learning", though.
It's just information. As in not knowledge.