With 1000's of crypto projects out there already and no doubt even more on the way, doing your own research on them before investing in them is a must.  

These are my top 3 NOPE's... something I find in the research that will immediately make me not invest.

Anonymous Team or Founder.  This is my biggest nope.  If the Devs or Founders aren't confident enough to put their name to the project, why should I invest my money into it?  It is also more likely to be rugged at some point if they are anonymous.

Large percentage of pre mined/minted coins going to the Devs or Founders.  I do understand why projects do this.. the team has to eat.  With so many crypto projects out there now, it must be hard for projects to stand out and raise investment before hand.  It's easier to have an allocation of the coin pre mined/minted and sell as you go to pay the team.  From an investors point of view though, you would more than likely have to hold for a number of years before seeing some large gains, as the team will be constantly dumping on you to get paid, and I would rather hold Bitcoin for those years.

Infinite supply.  I'm a big believer in having a set maximum supply that can't be changed.  An infinite supply of a coin will immediately make me say nope.

Stay safe and always DYOR.