In The Last Jedi, Luke realises Solo is contemplating going towards the dark side and considers killing his pupil.
The user says, “Even Obi-Wan and Yoda urged him to face and strike Vader down in order to become a Jedi Knight, but Luke’s instincts told him different.”
He redeems himself, though: Luke does eventually save the good guys in The Last Jedi.
“Luke has always trusted his instincts,” the Reddit user says.