Donator:   Manually applied by administration after 10 BTC donation, and gets 5 gold coins under his name
of which the last is half green. 5 coins are shown regardless of post count when user is a Donator.   
VIP:   Manually applied by administration after 50 BTC donation, and gets 5 gold coins under his name
of which the last is half purple. 5 coins are shown regardless of post count when user is a VIP.

Now let’s see if this rule is too harsh. As the price of Bitcoin gets higher and higher, it is getting harder and harder to reach this level.
I think the price should be lowered to increase the sense of participation of newcomers
The price should be equal to the price of 50 bitcoins in 2013.