The system supports it but that doesn't mean the community should. The system, in america, supports people buying a monopoly and raising the price of everything by 5000% but that doesn't mean the community supports it.
This is more about setting a precedent. And yes, bernie has self voted, I do not support that either and many in the community don't, hence why he has so many flags against him.
So why pick on Haejin? Look at Jerry Banfields post about the highest earners from a few months back. The top whales all self voting. It's not right or fair to single out one person. If you big the system is wrong make a stand to change it. Make a post about self voting but picking on one person smells of a lynch mob looking for justification for their actions to me.