While there is always a chance they are not disclosing things, i.e. doing the maintenance work themselves and not booking it, the more likely scenario, at least in my case, is nothing needed repaired that year at that property. 

I find that I learn best through media—books, specifically.

So go find that local person who teaches cheap classes, or provides a 1hr overview at a local REIA.Read the book the 16% solution for a general overview of concepts and ideas.

So I don't know if people are living in those homes and will take advantage of a random booking or if people are actually paying those rates.

So now we have to be sure to scrutinize any email from them, or risk losing money on a booking.

Read books, attend seminars, or consult with financial advisors to continuously improve your knowledge and make informed decisions.

@Chris SeveneyYou should write a book about your experiences.Thanks for sharing.

Those with experience talk or listen to book on tape and are have zero concern.  

STR I would highly recommend not to focus on as first investment: also there, my partner is a superhost and we have been managing Airbnb for years and the last year has been pretty funky: people tend to book last minute and you risk to be cash flow negative starting brand new.

Just bought a copy of that book, thanks for the recommendation @Nathan Gesner