I don't think there is anything wrong with belt notching... we are all passionate about golf, and if we have the time and the finances, playing exciting courses around the world seems like a worthy endeavor so long as it's, you know, kept in reasonable perspective. Where I think the term becomes pejorative (and this is probably my background in philosophy talking), is when the notches are associated, more so, with a specific list or lists, and not with a passion for the game.
Generally speaking, appeals to authority are helpful, even in aesthetics. It's generally impractical and imprudent to not generally defer to experts. Thus, the authoritative lists are a perfectly reasonable proxy to use. However, when some authority is chosen, and their list becomes the authoritative source of notching, the enthusiast could be seen as a disciple, or worse, as a zealot. An authoritative list can be a great guidebook, but they are not divine oracles. They can be wrong, and the real fun should be in the arguments they inspire. A cannon of golf is nice, but most of the folks here, I think, know far more about their favorite genre of golf than some panel.
For me, I'm more the type of person that would rather play one course a dozen times than play a dozen courses once. I'll fully admit I'm not the type of person who can just look at a fairway and green and just see all the best lines into all the hole locations. I prefer repeat play so I can understand the course better. So, I try to add some shibboleth when I talk to well traveled enthusiasts about courses they play. For example, the unkempt sites like Iona or Colonsay. I also have a fondness for the exceptional vernacular architecture of a Pacific Grove, Northwood, or Lions. And I know my clear preference for the wind and open spaces that make me gravitate toward spending energy to get to a Ballyneal, Landmand, or Wild Horse type location.
At the end of the day, when talking to someone who has lots of notches that I'm impressed by, I just want to know the person I'm talking to understands why they like what they like. And if they do, I feel like I can learn a lot from them.