One more red flag - team says that they won't fully open the project source code
Here, I can not agree to 100%. I just know one project that showed their code on the GitHub. After that there were stuffing aggressive advertising that the token of this project is already being traded on Yobit. At the same time, the main sales were still not finished. And the team warned that it was not them.
But some of the number from the community were misled, the token has essentially lost its price, and now the team is initializing the fork.