Good news and hopefully can help attract investors because John McAfee's is a big person in the crypto world
I'm not really sure about that, right now I think John Mcafee doesn't have much influence on the success of the project, because some of the previous projects that partnered with him had a lot of problems and the price of tokens dropped.
You're 100% right. 99% of success depends on the product quality. John's tweets are like an additional big rays of light to YOUengine platform. All the rest depend on teem.