By all accounts he was an asshole from the earliest days, long before he was a known quantity.
I'd argue that brutal honesty is a good thing. So many people try to be agreeable, but don't people stop to think what they themselves think of agreeable people? Generally they seem fake or insincere. When an asshole tells you 'That's an interesting idea.' they mean it. What an agreeable person says it they might mean it or they might mean 'Wow, that's one of the dumbest ideas I've ever heard.' So it makes their opinions, or even discussion with them, rather pointless. And broad agreeability can also make a person seem quite daft.
I'd argue that brutal honesty is a good thing. So many people try to be agreeable, but don't people stop to think what they themselves think of agreeable people? Generally they seem fake or insincere. When an asshole tells you 'That's an interesting idea.' they mean it. What an agreeable person says it they might mean it or they might mean 'Wow, that's one of the dumbest ideas I've ever heard.' So it makes their opinions, or even discussion with them, rather pointless. And broad agreeability can also make a person seem quite daft.