At the moment, very promising social networks, the prospect of the future so nice
I think skillchain will also need a unique feature, and then probably linkedin will also offer some money to buy skillchain.
Yes, I cant see any reason why people would stick with using mainstream social platforms like linkedin, as the general awareness of the public grows.
People have the sense of freedom rooted into them - once they see their rights being violated, there is no going back, they will start looking for better alternatives, and im sure they will find SkillChain waiting for them!