Perhaps many buy and sell merit points in secret,
They will be exposed soon in no time.
I think it is very difficult to get merit points, most people will probably take a shortcut, maybe they have multiple accounts to send each other..
There's no shortcut to success so if they will do it then they will be known and probably be tagged by DT's.
That's a desperate one, everyone is aware that merits are not for sale and it shouldn't be bought.