This site
https://www.atobmixer.com AtoBMixer offering monero mixer, why use mixer for monero ? taught monero was untraceable
they also offer mixing for 16 different altcoin
but mixing monero is not worth it or am i missing something here ?
Not necessarily. If you are using Monero (XMR) and your Monero (XMR) address is already tied to you, then you still need to use a mixer to cut any ties. It does not mean that Monero (XMR) will keep you away from people trying to link your address to another address to try to follow the movements of your XMR every step of the way. If you want to lead them to a dead end then a mixer is the best choice.