I'd be surprised if the AirBnB host was able to work out that they made $100k , unless the guests told her (and were telling the truth) which seems unlikely.

Feels like you'd need to know what coin they were mining and what the equipment actually was (e.g. what type of mining rig) to have a chance at working out revenue.

EDIT - Looking at this https://www.asicminervalue.com/ makes it even less likely that they could have made $100k in a week...