Absolutely. But we are talking global stuff here, not personalized. And for newcomers you have nothing to personalize on, they don't follow anyone yet. We may all agree personalized is better than global (and yet most apps still haven't adopted it?), but if you want or need global, then please show me algo that's much better, I will happily zap it and use it.

Personalised is easy, most people don't follow junk, so input is high quality. Try any simple algo on global and you'll get garbage. Or maybe not, then you get zapped and everyone wins. 

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