I think it has less to do with Myers-Briggs itself (which was around for decades before most people had ever heard of the Internet) than it does with a particul

I think it has less to do with Myers-Briggs itself (which was around for decades before most people had ever heard of the Internet) than it does with a particular quality of online social interaction. By removing barriers like distance, the Internet encourages us to sort ourselves into groups based entirely on specific shared interests. And since the only thing these groups have in common is their specific shared interest, they tend to spin off into obsessing over it, just because it's the only thing they have to talk about. When you only have one patch of cud to chew on, the only thing you can do when it stops satisfying is chew harder. This is true of people in communities like Myers-Briggs subreddits, but it can also be observed among participants in all sorts of interest-organized online communities. And a lot of the really damaging social pathologies of our time are a direct result of it. When you look at things like "incel" culture, for instance, you see a group of people who have taken what was a shoulder-shrugging "whaddaya gonna do?" kind of routine life problem before everyone became extremely online, and collectively obsessed over it so hard they built an entire ideology around it. That didn't happen nearly as much before social interaction became primarily an online thing. But it happens all the time today, on all sorts of subjects, because the online medium encourages it. Personally, I find my Myers-Briggs typology (INTJ, if anyone cares) to be mildly interesting, as it highlighted some aspects of my personality that I had previously not really understood very well. For me, that's as far as it goes -- I don't see Myers-Briggs as some kind of all-encompassing Key to Life, the Universe and Everything. But if I spent lots of time on a Myers-Briggs discussion board, where the only thing we had to talk about is Myers-Briggs, I can totally see how I could end up becoming convinced that it is the key to everything. Not because it actually is, but because once you fall down a rabbit hole it's hard to see anything but the walls of the hole.