A lot of ICOs just pay random idiots on websites like fiverrr.com and freelancer to write their whitepaper, these people don't understand the depths and intricacies of the project, leading them to search for this information online. Unfortuntately there isn't much information available online, meaning the less creative writers will start to plagiarize the little material they have.
Here's a lesson guys, write your own damn whitepaper, or actually take the time to fully brief the guys on the project.
I also encountered quite a few projects with similar whitepaper and not much special. I think that these projects probably think investors will not spend time reading WPP so they do not focus on creating a serious WPP. The other WPP copying projects I will not appreciate.