Sam Bankman-Fried is a criminal and deserves to go to prison. That does not mean it sucks morally to use his money, just as it does not suck to use cash which directly come from cocaine and heroin sales.
No one is talking about "
using SBF's money" - The situation at hand is whether or not you would allow SBF to use your coinjoin coordinator to turn his stolen money into private stolen money.
But zkSNACKs did/does, otherwise why rely on it to provide you with inputs about who can coinjoin and who not? Why use a method to determine non-existent taint using imprecise data and algorithms? How do you not see that you are defending and justifying something flawed you yourself don't believe in?
It's harmless to rely on these reports even if they are inaccurate because there's no consequences for users who are mistakenly identified as "tainted".