Kudos to Billy for being brave enough to state what was sure to be an unpopular and misunderstood idea. I agree whole-heartedly.
Pursing a hobby can be healthy or destructive. Some people have exceptional abilities -- including natural skill, financial sustainability, lack of social and family obligations -- to pull it off and become exceptionally accomplished. For most people, with more modest skill, a 9-to-5 middle class job, a few kids, being a youth soccer coach, church obligations, PTA meetings, et cetera... it would be unhealthy to pursue many of these goals. People in this category are probably never climbing Katahdin in the winter, much less Rainer or Denali, no matter how much they want to. They aren't ever doing the Grid or Red-lining, either, unless it comes at a steep/destructive cost to the rest of their lives.
One of the reasons I don't celebrate a big accomplishment of somebody I don't know is that I don't know which category they fall into, and I don't want to pat them on the back if their family/neighbors/community back home is less well off because of their hobby.
FWIW, I feel pretty blessed to have had the opportunity to hike/climb quite a few mountains from Maine to California (and a few beyond). I feel a certain freedom that comes with feeling competent, but now as a busy family man, I know that any aspirations to grid or climb Denali are staying on the shelf right next to my mountaineering books. Getting out a few times a year is about where I am, and, frankly, I'm alright with that.