Because they don't read them and even if they did they wouldn't understand them. All of that is moot anyway since any reasonably informed investor would realize these type of non-voting shares with essentially no board representation are going to get diluted into oblivion in later funding rounds anyway.

It's almost impossible to profit as a shareholder via crowd funding even if the company is wildly successful as it stands currently. Hopefully in the future the markets or legislation will adjust this once that becomes more clear to the general public.