As someone who habitually greets strangers and has seen the benefits of that approach, this convinced me that I should also finally learn a character with a decent fireball in their kit.
Minovsky
Saw a Japanese tweet a while ago that's been living rent-free in my head ever since.
Greeting everyone kindly is like spamming projectiles from a distance in fighting games. If it's in your kit, you should always use it, because it's never a bad thing to do.