Yes I know - I don't know all the details but I did see the drama unfolding on another forum.
Apparently gas leak only came up after reviews were posted, and a partial refund was given to her (she wanted full refund).
Airbnb has had a share of accidents due to carbon monoxide poisoning and similar, my thought was that if they get a report of a gas leak, no matter how crazy the guest and obvious she is lying, they might HAVE to shut you down pending proof that it is a lie.
This seems credible to me, how could they possibly take a risk with your next reservations if there is any chance that the disgruntled guest might be telling the truth. The stakes are too high they have to show they did their due diligence.