I wanted to throw my two cents in here. A forum is just a way to create community. If one were to be part of a group of local hobbyists of any hobby, and you see other people purchasing and enjoying new things, one could feel the same set of emotions of “FOMO” or “fear of missing out”, one does here on the forum.
It’s the “FOMO” that’s the cause of yo-yo envy, not the forum itself. It’s not specific to yoyos in any way, shape or form, it’s something that’s faced by anyone who gets really into a certain hobby. I do have a large collection of older throws from when I was super into the hobby from 2003 to 2007 or so. I also have way too many R/C helis. I have way too many mechanical keyboards. I have way too much “functional glass art”. For all those hobbies, it wasn’t any forum causing my envy, it was new products, and being exposed to them regularly. That’s what the forum provides, not only a community, but a constant exposure to the new goodie goods.
Anyway, TL:DR, it’s not the forum causing the envy.