First, I am far from thinking that Ethereum is in REAL trouble.
I hope Vitalik pulls through, and can look back at this all and laugh someday.
..
Next, I think the question boils down to whether the final outcome is all that matters when branding someone a scammer ?
Obviously Vitalik and Bob are completely different people. Everyone is.
But thinking that someone is 'well meaning' is very subjective.
I too think Vit sounds like a nice guy uber-nerd. Don't know him. Can't really say.
But IF at the end of the day, 2 similar situations both result in investor money going AWOL, no matter the reason, are they not in some way in the same boat ?
I would say that NEITHER is a scammer.
If you put money into a scheme, it's your call, and no one else's.
If you want to blame someone, look in the mirror.
Luckily 'experientia docet'