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.