I'm the trade mark attorney quoted in the article.

A lot of comments here are focusing on whether Airbnb can "own" BnB. That's not quite the issue. The interesting question is whether consumers would see "BNB" as indicating commercial origin, or simply as a descriptive abbreviation for bed and breakfast accommodation.

The fact that so many people in this thread immediately interpret it as the latter is one reason I described this as an uphill battle for Airbnb.

I wouldn't bet on either side a priori. I know what I want to happen, but the legal process here is perverse.

Failing to defend, failing to adequately resource a defence of even the blindingly obvious can lead to some odd outcomes.

Personally I hope for a pro bono, well structured "piss off, this is stupid" line of reasoning from history. Ask yourself why "AirBnB" chose the 3 letter form in the first place. Thats .. prior art, a generic, or a combination of the two.

(not a lawyer. Hence my doubts this is as straightforward as I personally would like)

classic case of misaligned CI (corporate intelligence)

There is a hotel chain called b&b, the wikipedia b&b page shows b&b all over the world.

But may be it's the "n"?

Booking.com lawyers getting inspired here.

Disgusting behaviour by AirBnB leadership

There are BnBs all over around in Britain. Good luck with suing them.