spotting scam icos and Crypto projects nowadays are very hard and difficult because most of them (scammers) can even make better websites and they're too good to be true and even they have also a good community strength through telegram channels, facebook, Twitter and other social media channels.
Most of the time, scam icos and Crypto projects will be recognized when it's about to end their ICO sale and they already bag the money from investors.
for me, checking their Telegram Channels will give me difference because good crypto project and ICOs have many active social moderators and admins and active users.
Most scam icos have only admins and moderators in less of time and even not everyday.