Is there a way to determine the number of people who are actually using Bitcoin till date? Who would have access to such information? Meaning a way to find out, how many new people have used Bitcoin in 2016 , so that we can say exponential growth is natural not artificially created by hoarders.
I think there is no way to determine this. there is nothing that can determine the actual growth accurately but i bet you there is increasing growth of people because of rising price.
You are correct dude!, because some of the member here actually they have multiple accounts and that's one of the reason why its hard to determine it particularly bitcoin is decentralized.