Btw, it’s very easy to test these things, as altering any of them will immediately affect your listing in Airbnb search results (thankfully changes take affect immediately in Airbnb so you don’t have to wait to test the results of any of these things, it is very very quick and easy to do)Simply go into incognito mode, preferably on a browser that you never use, enter some search criteria and record where your property shows up.Go back into your main browser, tweak one of these settings, then re-search for your property in incognito mode using the same search that you used before.

I believe the examples you're pointing to were altered by the changes to first year depreciation by TCJA and the defining factors of original use. 1.168(k)-2 updated (k)-1 ; and the example in both references assets before September 2017 and refer to new assets meeting the original use requirement; not used assets.The TCJA changes to the requirements to be considered original use; or used but meet certain requirements prevents the carryover basis from being qualified for that requirement; and qualified to utilize additional first year bonus depreciation. 

I altered the course I was on not for an easy route because I did form a company and was doing the business very well for a while.

Onofrio, or his business entity, would cause false information to be submitted to lenders financing investors’ real estate purchases and in some cases altered purchase agreements to support higher appraisals of the properties.Prefabricated Facts: SEC Charges "Queen of Mobile Homes," Others for Years-Long Scheme | Insights | Holland & KnightThe SEC alleges that Van Gundy and ORES did not use investor money as promised, either.

Oddly, these aren’t counted as additional “estimates,” though, so the core number is 3.Beyond the Quarterly Estimates: Ongoing RevisionsAfter the third estimate, GDP data undergoes further updates through 2 main types of revisions, which can alter the numbers multiple times over many years.

If you follow that rule, then losing sucks, but it doesn't alter your life. 

@Juan David MaldonadoYou definitely need to let your carrier know if you alter the currently insured use of the property. 

Is there a known glitch where altering a reservation causes the tax to be grossly miscalculated?

If that changes in the future, and I really hope it does, I will be the first to publicly alter my opinion and report it out to all of you.

So don't beat yourself up.this is good detective work on your part to bring to light alter ego's etc etc.