Please I may not be the only lame man here I've longing to know why People typically use bitcoin mixers to mask any previous "questionable" transactions from the bitcoin that they are likely cashing out in their real name. Now let me know about purpose of mixing bitcoins.
Bitcoin transaction is transparent and traceable, with the use of mixer, it is said that it "covers" the transaction history of bitcoin when it passes the mixer. Many use it for anonymity, privacy stuff, so that the receiving end will not detect where this Bitcoin came from. Several online casino gamblers uses this service to cover the traces that Bitcoin came from gambling, since there are exchanges that do not accept funds from gambling casinos