There were and there will be a plenty of scam projects, the only difference is that it is getting harder and harder to detect scammers. Nowadays, they may even create an MVP of a product, write a solid whitepaper, hire good advisors to collect funds and scam investors.
If you do the necessary investigations, you can detect shit coins more easily. It doesn't make sense to have MVPs because the team is always important. By looking at the project team's previous experience on linkedin pages, you can reach a much clearer idea about the project. This method usually works and you can test it yourself.
Well some projects are very good in convincing the community that they are "the real deal" until they will show signs that they are not! As such, I often prefer to assess the project's worth based on the capacity of its developers/core team, the rate of its development or progress of the project, the level of transparency it shows to its community, etc.
I also don't think that we can better qualify a project based on the team's linkedin profiles rather, I would prefer to see the projects Github activity especially on future experiences of its developers.