There is, unfortunately, the risk of others doing the exactly the same thing subsequently, because they'll see this as a black swan event that will clear out the market of smaller overleveraged AirBnB "hosts", leaving them to purchase the properties in question. There are some big players, such as "The Key Collection", who are heavy users of AirBnB, with a large number of properties, as well as more legitimate properties like hotels, guesthouses, &c.

There are a few important things to keep in mind.

The Irish government has not been very good at enforcing the law around this kind of thing, and I see no reason why that should change, especially as the biggest party on the government side of the Dáil was the main party in the last government, and their records on housing (they're basically Tories) is notoriously bad. The other party in the proposed government is an ideologically similar party, and the one the caused our economy to implode due to property speculation in the 2000s.

The outlook is not positive.