The battle has been won!
This is pretty ridiculous, but not surprising. Having worked closely with a legal team at a large company before when trying to procure domain names, there’s no possible way they would have missed the GNOME trademark. This seems to be a case of “we can probably steal it for cheaper than it’d be to find another name.” I’d also imagine that there’s a domain purchase coming soon, which is probably pretty sizable, given that gnome.com has been registered since 1995.
Groupon is still around?
They did IPO, but their business is much different than it was when they had all of their growth. They’ve gotten into the payments market, now, too: https://en.wikipedia.org/wiki/Groupon#Groupon_MerchantOS