I suspected we might hear from an Anti Mailer and was not disappointed ;-) But far from being dead, I've seen things like this happen over and over again for the folks who apply themselves and use best practices.

Quote from @Nate Marshall: This is why I have my line of anti guru merch now.  

Is there any way for a landlord to winter-proof interior plumbing with a drain or pressure-relief valve similar to anti-siphon exterior hose bibs?

@Yonah Weiss no degree, I did have very hight but anti school, Ive had my own business for 5 years

I know you are an anti rat-race kind of guy (as am I) are you going to stay put or are you trying to grow create even more passive income etc? 

I'm not trying to get into a pissing contest with you because I know you're very passionate in your anti-California views since you've sold everything here and relocated to Arizona (or maybe it's the other way around).

The bad is the city has an anti STR mindset with recently enacted lottery and quotas.  

I came from a very pro-labor, anti-capitalist family where "making a profit" or selling something for more then you bought it for was considered taking advantage of one's fellow man, and severely frowned upon.

If you wanted to create a different product with a different strategy then there will be different price points to reflect the different levels of risk, variability, and return desires you want.You run into risk purchasing a bad turnkey, but people also overlook you run into risk trying to do it yourself and that is my fear sometimes when people are 100% anti-turnkey as I have seen more people get into trouble trying to do something themselves when they really didn’t understand what they were getting into.

It is evaluating the location where you are investing to avoid areas that are anti-landlord.