There is a lot of potential in ICOs. The reflection of an IPO in the cryptocurrency market. This winter I have seen everything. From the useless Dogecoin hated by it's creator reach a 2 billion dollar market cap, all the way to 40 VISA PREPAID DEBIT CARD icos. These are all worthless investments. Don't get me wrong, I have successfully traded DOGECOIN in the past and have had some successful ups and downs in the matter of one week trading within the range. But these are not real investments rather more jokes I would say. Out of all ICOs less than 5% will become successful. Stop creating FOMO by sharing ICOs. If you believe in a project, it shouldn't be about spreading referral pages. 
There are TO MANY ico’s. Like you said invest in what you believe in.
Funny how many of them focus on the same things. The front end visuals and scripts are somewhat copied. The same ERC20 based token offerings and blah blah blah. Cheers 🍻