Personally, I was really selective in join campaign or investing on the market. Most of the time I don't join on the first glance or just a an hour after I read the whitepapers, most of the campaign I'm join I reach even 2 days to think and explore the project. I also do a lot of research and I read other opinion. But I always follow what's in my heart not just because of other says. ICO reveiwer is one good thing on how you check the project.