I think of motivation like an extra boost.

I am about to close on my very first home, and will be using the house hacking strategy to boost my cash flow, and eventually buy an investment property.

The hotel lobbying against STR’s in NYC has weakened as a result of 2020, and NYC may look to relax regs to boost tourism...therefore boost their tax revenues.

When they move out a few cosmetic things like cleaning, new carpet and fresh paint will boost the rental income substantially. 

As for greed, I think it is a morality issue or maybe even one of ethical behavior. 

It paint's a bit worse of a picture.But then again this isn't just another opinion I throw out into the internet debating morals and opinions.

Also, with the popularity of online platforms like Roomies, PadSplit, etc, is anyone hacking a 4 bed 2 bath house, adding a room and making it a 5 room rental to boost cashflow (knowing that there's more turnover of course) significantly?

And that does not even include the fact that you will probably buy an additional property every year and a half or so just from the cash flow.The moral of the story is – cash flow pay’s the bills and you need it like the air to breath, but it does not amount to much money.

Google it to make sure.Whatever happened to morals in this country? 

It will be an emotional boost as well- one less check going out each month and one paid for property!