Gridcoin mining with BOINC is a charity it isn’t an investment. What makes it a scam is that many of the sites they own are falsely claiming you make almost as much as you can make mining cryptocurrency. That is NOT true! It costs 50 cents per day to run the average computer with a decent GPU! I tried it myself for 24 hours on my CPU at 30% and my GPU at nearly 75% for 6 hours and the pool reported I would earn 0.3 Gridcoin PER DAY! That comes up to ONE PENNY A DAY!!! It is nothing more than a charity, you are giving them money in the form of processing paid for in hardware and electricity and getting almost nothing in return, not even enough to pay your own expenses! This is bad business, it is a Charity, NOT an investment!