I personally think that letting the value of a coin fall below the ICO price is a big problem in a ICO. developers should do something about it they always reason that it is because of bounty hunters dumping their coin but for me that isn't a good excuse especially for the investors.
For me The value of a coin or a token is a developer's responsibility, they should do anything to maintain the the price close or even above to ICO price, because this will be a factor for the investors to get tired in investing they would rather prefer to invest after ICO when the price drastically falls down.
Dev's should place a buy wall when the value of their token falls 25%-30% of the ICO price in that case the value of the token will be maintained or even go up and they will attract more investors in their project if they will do that.
This is only my opinion, correct me if im wrong. Whether you agree or disagree i would love to hear your thoughts and opinions about this matter.