People like talking about things they are passionate about. For better or worse, climbing is the new "Tech Basic" thing to do, where lots of people in tech are recently getting into it, and therefore excited about it. It's a natural consequence, and a fact of human existence. People talk about their pets a lot because they spend a lot of time and energy with their pets. Same for kids. Same for programmers (who do it beyond work).
I hate being basic and following the crowd, but climbing is just so much fun. It is the most fun activity I've done, up there with Soccer....and easily the most fun individual activity.
The reward after doing a tough route is just incredible.
As much as my comment was a bit tongue-in-cheek, I don't mean to say you shouldn't do it because it's basic ;). I've been climbing for many many years and agree that it's extremely fun and rewarding. That doesn't change with more people enjoying it (but also stay home so I can get the good routes to myself ;) ).
