Why not? Why should you never mix them?
I thought that if you are paying with a wallet that has a mix of both, they get mixed and sent and the statistical probably says you probably made a genuine payment and the ownership changed hands.
That's what I assumed.
What's wrong with my thinking?
If you are using a mixer I haven’t gotten to that part in my BTC journey yet…the reason to keep them separate would be because the kyc would know ‘where’ you were sending corn. ‘They’ could assume the non kyc would be payment or other incoming coin. I would keep it separate just keep them from knowing what you control.