The accumulation addresses are the ones that have at least two incoming tiny amounts of Bitcoin transfers and have never spent funds. The accumulation addresses don’t consider the ones belonging to miners/cryptocurrency exchanges as well as the ones that are active for over 7-years.
I question their methodology:
1. " at least two incoming tiny amounts of Bitcoin transfers" - why?
2. "don’t consider the ones belonging to miners" - why not?
3. "as well as the ones that are active for over 7-years." - presumably this means that address that were funded > 7 years ago? Why not?
Seems pretty inaccurate.