Because not all centralized mixers are built the same, no? Although you make a good point of telling us that there are bad actors out there, but there must be those good ones that do provide an actual service of making users' outputs untraceable?
I already explained this to you:
I'm talking about a hypothetical mixing service that actually does everything right, which may also exist somewhere, no?
Yeah, that's exactly my point that proves o_e_l_e_o and BlackHatCoiner's goal is to scam users out of both their coins
AND their data. You can't possibly mistake these scammers for "Privacy Advocates" since the custodians they promote don't provide any privacy whatsoever, despite the option for these custodians to issue fully anonymous Chaumian Ecash.