Like to give my two cents worth on this...
Many of the Hamilton fans here have pointed out that Hamilton has been accused of being guilty of many things by neutral fans and by pundits (or someone with good F1 knowledge), this is the first time ever I have heard that neutral fans believe that Hamilton was at fault for the spy-gate, and a few other incidents. There are always going to be those that will make up stuff and come up with weird claims towards a driver, be it Alonso for being a "multiple cheater" because his team has been involved in many gates, Raikkonen being "lazy" and "unmotivated", Vettel for being the "crash kid" but to categorise them as "normal" fans when it comes to Hamilton I don't think so...
He has been involved in a fair few controversies, and doesn't help himself, in incidents he tends to make contrasting statements after a while, so we are all left confused as one interview he will say one thing, the next in another.
My view on the incidents that have been mentioned in the OP
Monza 2010: Hamilton's fault as he braked too late and went into a gap that was going to disappear quickly. Also don't get Brogan's point on how Massa should have passed him around the other way, when Massa was already ahead going into the corner, and it certainly wasn't Massa's fault that Hamilton came from a long way back, and went into a small space that was going to vanish.
Singapore 2010: that to me is clearly Webber's fault, why didn't he get a penalty? It still puzzles me to this day, as does no penalty for Australia 2010. But the stewards then were more lenient then than this year, and Webber for some reason tends to get away with a lot of incidents. I don't remember Hamilton getting blamed for that from neutrals or pundits, at worst it would be 50/50, but I still think that was Webber's fault.
Canada 2011: Both drivers at fault in my opinion, Button closed the door too early, but then he said he couldn't see where Hamilton was, Hamilton got too excited. And I remember Button getting as much criticism as Hamilton did for that.
Belgium 2011: Same as Canada but the roles are reversed, the difference here though, is Button couldn't see where Hamilton's car was because of the conditions, Hamilton didn't look in his mirrors, and Kobayashi could have backed out earlier. I fail to see how many here give Kobayashi full 100% blame, and vice versa.