I struggle to find a way in which Corbyn being mentioned on a thread about Labour isn't relevant
He literally broke the party apart, which it hasn't still fully recovered from
He is still worshipped by many a long time Labour voter
He is the post boy for far left politics of tbe type are current Labour government seem drooling over
He may no longer be in the party but his old and current dealings will always have some relevance, even if only to judge whether voters loyal to him will return to Labour at some point