Gooning behaviour the sexual activity? Niche fetish. Never tried it. Never had the time to try it.
Gooning behaviour aka the porn version of being "terminally online"? Annoying at best, community destroying at worst.
Gooning behaviour aka how my friends use it, aka "we have this one friend who refuses to leave the house and we joke that he spends all his time gooning but is actually having a mental crisis and resists all our efforts to help him"? Uh ....
So basically, words are the devil and they lead us astray with their multitudes.