On one side, there should be a ledger of people doing shitty things, even if the behavior isn't illegal. Who wants to work with assholes? No one. If there's a record of people's bad behavior then future founders can save themselves a lot of suffering by simply knowing to avoid these people.
On the other side, what standards are used to put someone on this list in the first place? Are multiple offences required? Seems like without a process of submitting good evidence of people's poor behavior there's a lot of room for abuse. If this list actually becomes a tool that people rely on to select their investors I would start to be concerned by the potential abuse of power.
I'm curious how others feel about this idea of putting people on lists.