EW: As a rather avid geocacher myself, I wholly endorse the inclusion of the word "geocache" as an official Scrabble word. But not everyone's happy about it. It's not a very useful word, not a very common word, and redundant to a couple of other forms already in the pipeline. But a social media campaign by geocachers (including yours truly) saw to it that the word won the day.
And some folks are troubled: "I'm angry that my weird, nerdy hobby has been coopted by other people's weird, nerdy hobby."