Yes, I think that the number of ICO investors has decreased and many projects can not raise capital. this is due to the loss of confidence in the ICO
And who can blame them, I invested in an ico last year and even if I lost money it seems I did better than most investors since I only lost a little while many lost everything they invested, with those kind of results it is impossible to keep investors coming since those that invested do not have any more money and the ones that would have liked to invest are seeing what happened to those that took the risk.