OK just working with what I know.
If you want to invest in a coin, created by a person known for creating scamcoins. would you invest?
Tough call
Hmm you're right, once a person fails a business they should be blacklisted for life. That's why Reid Hoffman or Even Williams never got to make twitter/LinkedIn
Razor would've been illegal so he shut it down. Simple stuff.
A person failing on a business is different because it is his business.. He can do whatever he wants with business.. But this is asking people to invest in the coin. Its a tough call for the investor and something best avoided. He can still make shitcoins tho, nothing wrong about that.. Just buyer beware