i wonder what makes you trust a new altcoin? what you're looking for in their company page etc...?
For me the kind of people that are working on the project are the best part for me because if I feel like I can trust the people that are working on the project then I have no problem with investing in the coin. Which is why I personally do not invest in coins that do not have a face behind them because that simply makes it easy for them to take off with the money