Last year was a very good one for the short-term rental platform Airbnb. At the global level, its revenue grew to just short of $10 billion (€9 billion) and its Ebitda profit margin increased from 35 to 37 per cent. Amid share buy-backs, its earnings per share more than doubled. Its Irish subsidiary, which reports revenue from commissions on accommodation booked outside the US, saw even stronger turnover growth and recorded more than half of the group’s revenue for the first time, at $5.1 billion. Yet on the bottom line, Airbnb Ireland plunged into the red. The Irish company returned…