This is to make sure that people take responsibility for their investments on the platform. You can't come back later and tell them you didn't know how to read the terms, etc, etc. So when you invest in a pitch you know what you are investing in and are also familiar with the fact that the pitch is a high risk venture and that you may end up losing all the money you invested in the pitch.
I will invest in this pitch not because I'm expecting better returns on this then let's say on investing in MAID or BTC, but because I think the success of this pitch is crucial for the success of the project. Of course it helps if this contributes to the MAID I already hold becoming worth more in the process I'm hoping more people on this forum will invest either for the same reason or other reasons.