I think all of the above (although I'd wager Gatlin doesn't have many "fans" past his family).
I've honestly never considered that Bolt was cheating...just always assumed that he was an amazingly gifted athlete. I did however wonder how Lance Armstrong was able to win an event like the TDF year after year with so many variables at play each year.
Could Bolt have been juicing....absolutely...
what he was able to do was almost unrealistic and he supposedly did it while not being very focused on training or diet, and I wasn't aware of just how many Jamaicans have been caught cheating. To be close to the Americans is some feat considering how many athletes we have participating in any event.
Bolt was fun though and other than being a Manc fan, he seems like a good enough dude. So until there's some sort of evidence that he cheated....I'll enjoy the fact that I got to see him run.