They dont have any groups, its just that linkedin is chessy as hell since forever. Basically what happens is "networking". They all praise each other and send likes and comments like "good job", "congrats" and such in hopes that they will get the same in return, and usually you get it back in return if you keep doing it regularly to same people. And that eventually that grows and you have 500 people who you dont give 2 shits about but you will give them cheesy comments and they will give you cheesy comments back. Its ridiculous and i hate it, especially when i see people doing it, but for engagement, it does work. 1 in million, you might meet someone who is really decent and you maybe build a closer connection with that someone.
