EDIT2: and second: give me a prove that the other service is fully trustworthy and not a government honeypot for later usage. I know this might not possible until to reveal the identity of the owner or operator of the service which will be dangerous for them. so again you have to trust them in any case and the deep pockets of them are for me a red light of attention. but everyone should decide for themselves. time will tell probably.
When Chipmixer started they were not giving the highest payment, your argument would have been true if they started as the highest paying mixer. I was part of another mixer campaign and it was paying double what they were paying.If you're going to tag theymos, don't forget to tag satoshi too, he's the one who put theymos in charge 
When Satoshi left Sirius was the admin and then he handed it to Theymos if i remember correctly .