Quote from: _yoshi on June 21, 2018, 10:05:01 AM

You could start counting all createt wallet adresses. This will take you a long time. But then you will just found the amount of adresses, because a lot of user has more then one and some of them always create a new adress for every transaction they made. And then there are so many lost account who will never ever be used. So i think you could treasure the amount of users!

Yes, I agree that it will be difficult to make such a calculation. One and the same person can buy bitcoin under different names. And in the end, the statistics will be unreliable.