

I think that methodology is wrong. If they analyzed only one instance, then the whole follwer-followee thing might be completely off. And while they measured how many replied frequently, it lacks the “how many replies they got” side
It’s like comparing engagement on whole network vs via only one edge
I don’t think there is a one place for all of those at once. But I think some part of your interests might be covered by https://spectrum.ieee.org/ it also provides RSS feed