Condensation can/will build up in those lines and catch can. Especially if you start it up, move it out of the garage, then shut it down, or don't completely warm up the car every single time. If the catch can is metal, condensation can occur just by the ambient temps being too low, as well as in the hoses. If the oil in the engine doesn't look like your pics, you're fine. I the most I get is about a teaspoon from the LSA in the Camaro ZL1 and that's only if it's ran with the boost in positive pressure land a lot. I get nothing but maybe a drop or two from the in the L99 in the Camaro SS. And they're clean. No milk. I don't run a CC on any of my other cars.