I am not talking about the private sales and pre-sales. I am talking about the main sales.
Don't you think ICOs should allow people to invest any amount of money they want? It will cause the tokens to be distributed among more people.
Assume that 1000 people are participating in an ICO and each of them is investing only 1 dollar. Don't you think they are more helpful than a person who is investing 1000 dollar?
Better to consider a maximum amount instead of a minimum and do not let the whales manipulate the price.
If there's no limit then there's always be a huge uncertainty about the success of the token. We never want that one guy controls more than 50%-80% of the supply because that's how rich people maintain their status. It should be fairly distributed because we never know if that guy is really a believer of the project and them dumps it in the midst of the success of the project then it would be a total chaos.