Modern Dragon Ball fans are the gayest mother fuckers I swear. They get emotionally attached to some featless filler fool who lorewise is a low ranked nobody but get "the ick" from the real backbone of the series. Who destroyed a mountain? Who destroyed the moon? Who's attack is the signature move of the series? Who's feats back statements? Roshi is the GOLD on which Dragon Ball's currency is based on. He put in all the work and when he said someone was powerful the audience believed it.