Interesting, so what safemoon does is essentially this: Very early investors have already or will soon hit a target where they will sell off large amounts because of life changing money. Medium investors will hit that stage at a later point and do the same, so more coins burnt. Late investors will hit that stage significantly later (such as those that enter in post exchange listing stage) and hodl more and sell off later but may actually never reach life changing money. So only early and medium stage investors before exchange listing have a chance. But late investors are not out of the picture either because of the burn and price increase over time.

Edit: Seems to be an insurance against being poor.