Every day, new ones appear ICO. Some of them eventually become necessary to people and begin to bring profit to investors. About others, in time, everyone simply forgets.
But still they all have one feature - the opportunity to get free coins. And if you're lucky, as it was once with bitcoin, you can get rich. Yes, there was a time when the whole bitcoin was given free of charge.
Even considering that many crypto-currencies will disappear in time, they can be earned. Here is one example of ICO, which gives tokens for registration - https://ico.wcex.co/?ref=5KGqrpcf.
They have the following words on the site:
"When your friend registers using your link you get 50 WCXT + 5% from the WCXT they purchased, and they additionally receive a 15% bonus when buying WCXT."
Indeed, in your personal account you can see the token credited. How much will a coin cost after the launch of ICO is not yet known. But in two years the organizers promise to increase the rate by 2.5 times.
To whom it is interesting still there is an opportunity to try to earn on registration and to wait some days prior to start.