I'm not a fan of investing my own money on gambling sites but I did tried it. Yes! and that's on the old version of MP and if I remember correctly, it gave me a returning negative profit.
After that run, I just decided to divest which is indeed a good decision cause that is the time when many MP players started to won each pot on each app (and suddenly decreases the investors profit day by day). However, I didn't considered it as a loss since I'm also running my own app and have earned some profit, it's 1:1.

Question, will I try to invest again to MP? No.