[2] How about those who advertise as a privacy oriented service but then they share data with agencies, are they scammers too?
Yes they are scammers, this data collection is exactly that "mixing sites" do. You gain no privacy when you use a "mixing site", the operator is completely aware of the transaction history linked to every user.
By your logic Wasabi is a scam [Wasabi shared data with agencies] and you are a scammer. How ironic.