I don't think ICO projects which developed on NEO blockchain are much safer than other ICO projects developed depend on ETH blockchain 
. There is no place doesn't have scammer so don't hope that you can earn money by investing in every ICO project which developed depend on NEO blockchain . As I can see number of ICO project developed on NEO blockchain is really little but some of them are really good so it'll be a good chance for ICO investors but not all the time
i have noticed neo long ago and i believe that it is good as i watched it developing and i know it is profitable. There is no place doesn't have scammer so don't hope that you can earn money by investing in every ICO project which developed depend on NEO blockchain . As I can see number of ICO project developed on NEO blockchain is really little but some of them are really good so it'll be a good chance for ICO investors but not all the time