It really pains me to see investors complaining about how they lost their hard earned money or savings in a project. But the bitter truth is that most of these people are lazy to do their research and they just get in a project for the promised ROI or because some analyst hyped the project for them.
The main reason why you should consider putting your money in any project (either ICO, IEO or STO) should be because you are totally convinced that the project have an innovative idea with a working product that solves an existing problem (very important) and with a very good and experienced team to lead it to success.
An example is a project I won't mention, a lot of people got into it not because of their personal research but because one analyst ranked it in "Hall of Fame", of which if they had done their research they would have realized it was a ticking time bomb. And it exploded 15 minutes after the tokens were unlocked.
The place of research in crypto investment decision cannot be over emphasized but times without number, a lot of people still falls for the same thing all over again and just like you have rightly said, its due to laziness but sometimes its due to capacity of what is available to the prospective investors because majority of investors are average users of the internet whose only source of information is through Google and the perpetrators knows that so they put in place what they want those investors to see and blinded them with those few things against seeing some other review that are from those who can do a more detailed investigation on such project.