Sometimes they do not leave the market, but they do not develop the product. We're looking at the token that never works. I hope some people can use the article you prepared.
There is no doubt that most ICOs are either scam or worthless projects however, not all are like this.. community statistics says 85-90% are in this situation that means, current generation of investors and participants are required to spend more time and effort with new means identifying those few projects that are going to succeed and keep development going.
Because on average when their tokens are listing on the market the price is very down. so it's better to focus on trading in altcoins with proven quality.
Same thing we are talking about. Worthless tokens ---anyways, I believe as we progress, good measures and ideas will be introduced as to save investors more money