No, you have your hobbies, the things you do, you go to the gym, the game shop, the basketball court, the skateboard park, the soccer field, the arcade, the book club, the anime club etc.
You're bound to find similar people with similar interests like the ones you have.>>4899>niche interests
This is the only reason someone would do it, but even then in most of these cases people will try to have meet ups as frequently as possible, thats literally how anime conventions in the 80s started, and that was by hand written letters mostly no fancy real time talk, and those are where the most cherished memories, cool pictures, a tangible cultural zeitgeist, real sex and "real" friendships come from, yeah you can talk to people through a screen but nothing will ever substitute real human interaction and adventures.
>I don't think talking to people online correlates that strongly with weirdness
It doesn't everybody does, most people nowadays do, but the average person doesn't see somebody who "slid on their dms" as a real friend unless you actually hang out often, only desperate weirdos do that.