I want to clarify the situation a bit. First, the manager of ArcBlock made a limited individual cap - 3 etherium. This is done precisely so that the others have a chance to get into the project. Secondly, in all popular projects that can give a big profit, a lot of competition. Some projects limit the maximum contribution to 0.1-0.2 eth, but I do not think it's serious. I fully support the ArcBlock project policy.