what is the advantage and disadvantages of wallet mixing? why do i need to mix my coins in my wallet? This question is running to my mind about wallet mixing.
You mean bitcoin mixing, right?
Well the advantage of mixing your coin is that gain more anonymity as the coin that is sent to the recipient is not tied directly to your coins, meaning that you in the process stay anonymous. Since bitcoin is a public ledger, anyone can view transactions and still has the potential to reveal your identity.
Disadvantages, well it can be costly, especially for large amounts to be mixed.