Why is GitHub better than GitLab? Did I miss something big or are you refering to smaller differences in function? I thought GitLab offered basically the same core functionality as GitHub.
I feel like YouTube one can lead into another. Because it's hard to get people to follow you in GitHub. But having another platform where you can advertise your programs means a lot. Even if you write something useful people are not going to discover you without something else doing the outreach.
Theres been a LOT of bots on github lately. They mass follow each other. Its pretty easy to see them as they will have 1k+ followers and follow just as many. Theres growing scams and acounts where you can buy GH accounts online that are "primed" with followers so your account looks good.