These spammers from 3rd world countries that are helping to "advertise" projects barely help at all. The majority of this advertising will fail to reach investors with actual money to invest :/
Their twitter followers consist of fellow poor 3rd worlders that don't have the money to invest. Same deal with their facebook "friends" All those retweets and shares do nothing.
The "content creation" they do is a joke and is just view botted so that achieves nothing as well.
When you see 2 Facebook (or twitter...) pages with 20,000 fans from five world countries and the other with 2,000 from first word countries, well, apart from the fact that you will not know from where the majority come from, you tend to trust more the first one which seems successful.
Another thing is if this method wasn't successful and profitable they will stop using it which isn't the case for the moment.