I am not talking about the private sales and pre-sales. I am talking about the main sales.
Maybe it's to avoid very small transations and this will lead to more traffic or issues regarding to all users. And more questions to clear. Means more expenses. But it's only my guess.
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.
I'm a friend of low entry barriers. Maybe 50$ should be enough. In many countries 50$ can be very much money.
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?
As said above, 1000 investors will cause more question and possible issue than one investor.
Better to consider a maximum amount instead of a minimum and do not let the whales manipulate the price.
To be fair, I agree here, I don't like projects where many rich people hold most tokens or coins, like Ripple. Such projects are not good ones.