I respect folks that take that extra effort. It's probably for the best
That allowed, I stopped routinely breaking down kegs between batches many years ago. I do a hot water flush in my brew sink with the lid removed, stick 'em on my Mark II with the hottest tap water I can muster with two tablespoons of PBW for five minutes, then rinse with the same hot water for a couple of minutes, then add a few ounces of Star San, lube all the external O-rings, seal 'em up, and hit 'em with ~20 psi from my compressor to check the poppets for leaks. If they get that far they move to the "ready" area for their next batch.
I've never had an evident infection...