When creating a listing, the only option pertaining to Wifi amongst the amenities is "available throughout the listing"
This is potentially very misleading, most homes don't have 100% Wifi coverage throughout and there are inevitably areas where Wifi is very poor or not available.
Surely it's not a good idea for Airbnb to mislead guests like this, it's the only option available to hosts when selecting the amenities applicable to their listings and therefore many probably choose it even when Wifi isn't "available throughout the listing".
Unfortunately the "Ambassadors" at Airbnb, unsurprisingly, can't help.