For example, I definitely always got the sense that pg had a negative assessment of him from some of pg's writings about PayPal's early days.
But I'll say I always admired Musk for his sheer tenacity and ability to work extremely hard (and his ability to convince other people to work extremely hard). I'd say my opinion about him started to change right when he started bizarrely libeling that guy in Thailand as "pedo-guy".
So I guess my question is whether he's always been a collosal asshole, or whether that just grew over time as his wealth and power removed any constraints on his ego.