The thing is they might call MOIN a scam but do they even have any proof that it is? I never let people get to me and just go with my gut 99.9% of the time. MOIN has been around for a long time now and the dev is still here working on the project so I'm not sure what this person is saying calling it a scam. Maybe they are tired of waiting on the platform and started to spread FUD, I'm happy to keep waiting as I'm sure it will pay off in the near future.
Maybe not a scam but there has been no activity for the last few months on Github. The activity this year has been almost non-existent. I wouldn't put my money into this coin without an explanation from the devs. That they are working in their own branches just don't cut it. No one works that long on a branch without committing it to development or master.