In my opinion, before investing in any altcoin I consider the activities of the team, the use cases of such projects and find out if they are following their road maps. When all these are in place I go ahead to invest. For instance I invested in #Bluzelle recently after following their activities, I noticed their mainnet was launched and staking began when they promised to and the price of #Blz is growing organically not pump and dump. These are some good signs of a good project.
I didn't know yet about the Bluzelle but based on your opinion their doing a great job not every projects follows their roadmaps. We should be more theoretically and have always basis when investing. Factors that will help us to have foundation in every projects that we want to invest. Project team is very important in managing a good projects. You'll see how dedicated about their commitments. Whitepaper and the product will be a big factor we should consider in investing. Continuing developments and manage to give their investors and users what they really wanted.