Did Usopp Leave The Crew. Yeah he left the group but he acted like a man about leaving. Zoro however stopped them by saying that Usopp wont be welcome on the crew unless he begged and apologized.
Robin and Sanji in order to protect the Straw Hats although Usopp left because of the different opinion he had regarding the Going Merry. Episode 8 is where we meet Usopp but officially joining is tricky since he did leave the crew and then returned. Usopp believes that Luffy has abandoned the dignity of their ship and says hes leaving the crew.
He fights harder than hes ever fought before.
He left the crew at episode 236 so what episode does he rejoin. He is the fourth member of the crew and the third to join doing so at the end of the Syrup Village Arc. Okay we all knew in the beginning that usopp was weak and not that great but when stuff went down hed act like some semblance of man and did what he has to do. I think they both made some seriously bad mistakes but none of them were completely unforgivable and were certainly understandable at the very least.