flyers fans hate for him is probably the most unreasonable hate in the league
It's a hair over-the-top, but it's not entirely unreasonable. It's not his fault for saying "yes" to a ludicrous contract, but he is an absolute fiasco on the ice...and at the price he was paid to be that, people had every right to be mad.
He's really bad. He's about as strong as spaghetti and his defensive instincts are completely sub-par. Ineffective in all scenarios. Screens his own goalies constantly. Takes horrendous angles. Actually not a bad passer or skater, which makes it even more infuriating that he horribly misuses the two tools he actually has.