Earlier quoted context omitted.
The reason for the accredited-investor regulation was to prevent people from putting all of their wealth into risky investments they know nothing about and being left destitute. People on HN are pretty smart, but it's not representative of the entire population. People get scammed by ridiculously obvious scams. Do you really think they have the ability to invest in a start-up in an intelligent way?
I know it's a bit of a libertarian viewpoint but it is not the government's job to be my nanny. If I wish to throw all of my money down the toilet on some hopeless start-up I should be allowed to do so.
However in reality, some people do need protecting and the easiest way to do it is to "protect" everyone.