I mean regurgitating BS about what Corbyn had for breakfast in 1984 is total b0ll0cks but national news media thought it was important for the elections.
A politician or anyone else can only be judged by what they do and what they say. To some extent who their friends are.
Jeremy Corbyn's positive support for terrorist organisations including the IRA, Hamas, Hezbollah and Al-Muhajiroun - is well documented. He even voted against a bill to deny returning ISIS fighters their UK citizenship: this was in just 2014
He is unrepentant in 2017 on these issues, so cannot be given the benefit of admitting having made an error of judgement.