For a long time I collected these tokens from the bounty+airdrop. All tokens fell terribly after ico. It is curious how long you have to wait when they grow up. maybe i need just wait 100x)))
The first thing is, if a coin doesn't hit hardcap during ICO, then supply is more than demand... which tends to lead to price drops when they hit exchanges. Add to this the bear market over the least year, and most coins will drop initially. If it's a good project, then you just need to wait a while for them to deliver a working product and start to get established. I'd give it a year at least.