I will start investing in ICOs if
1) they can afford funds on there own to run there projects and stop relying on softcaps and hardcaps(investors money) which is why its the perfect haven for scammers ,you want to create a project that is very promising and you don't have the funds just move on ,no matter how good the project is if the hardcap is not achieved its goodbye
2)the waiting game is annoying ,if they follow my 1st idea there won't be anything holding them back especially bounty rewards ,nowadays you have to wait months for ICO to end and keep praying it become successful so as to get your rewards and the term successful from any ICO is from 'achievement of hardcaps ' this days not what the project is here to deliver ,there are still good projects out there that never launch ICO and they are doing better
ICO in this business can give an opportunity and can also give us a lesson if we choose a wrong project. So I there for conclude, since that we are experiencing bear market were most of the ico project also are turn scam in the end of the project, we need to be careful in choosing ico project. But my suggestion or tips instead of investing in the ico, I think it is much better to buy coins in the exchange that are belongs to top 10 altcoins, at least there's a high chances you can get a big profit in the end.