Yes he is, just not in every conversation. It's a great story and an accomplishment, but to drag it into everything becomes tiresome. We were all excited at the beginning but now, to be honest, I don't do any non-business discussions with him.
If you're honestly annoyed by it, then complaining on some random internet forum about it isn't going to fix the situation. Confront the person and tell them directly that they need to find new experiences to talk about or that it's getting on your colleague's nerves.
Stop being a coward around your coworkers.
I was agreeing with him, and posted my instant case backing up his opinion in a random internet forum.
Most of the co-workers also treat Mr. Everest the way that I do. Thanks for the tip, but I'm good with how to manage the social interactions with my co-workers.