thank you, that was very useful indeed.
if you sold your coin by yourself you will get around 275$ while if you sold it to another member you will lose 30$
If the OP can't prove the source of funds, the hacked coins can be sold in this way. Maybe for avoiding the KYC OP prefers to sell P2P.
There is no way to proof if those 51,000 DGB are hacked or OP really owns them. In both cases it is best to sell them on exchanges.
If he want to sell P2P, he should be looking to find an escrow first because it is very risky to sale here without escrow.
I doubt the OP wants to sell the hacked coins, the small amount shouldn't be even discussed here. There are a lot of mixers and P2P decentralized exchanges accept the DGB for converting to other altcoins. For high amounts, using the escrow will be a good solution.