I think that this "token rush" as you call it it's not something to worry about because, yes, there are some scam coins that are not worth shit, but there many other good projects that crowdfund themselves on ICOs and they turned out to be quite profitable for investors in the short -and some in the long- term
ICOs want success ,i think ICOs use token to have money . investors want money ,too .
but investors need read and research any ICOs ,maybe it is scam . and no stop token rush .