In my opinion, before investing in any project coin, one should have complete information about the project and check their documentation, team and future plan. The main thing is what purpose that coin is made for and where it will be used in the future.
As Polygon matic through which you can do your transactions with very low fees, the goal is that it has a great role. Similarly, there are many other coins that can be used to create many conveniences. If anyone is still having trouble, you can choose from the top coins in the market, because any coin coming to the top coin is a sign of its excellence. This is also an easy way to choose coins.
What if their documentation is plagiarized and they were not caught yet and you already bought their coins during pre-sale?
There's a lot more than meets the eye in checking the legitimate projects in the market. Back in 2017, I had invested in couple of altcoins during their ICO pre-sale cause why not right? Cheap coins, high rewards after the ICO, right?? Right??? Wrong.
Careful of benches of ICO as well. Most likely they're either paid reviews. I had couple of experience where team passed the KYC test, but they still did an exit scam. Not sure what happened now after, lol but you get the point.
Do you tend to check and verify if the partners some projects claim they have are actually real and authentic and aren't faked partnerships? Because scammers understand that most users would believe in a project if it has lucrative partnerships with big companies and projects so they simply just put logos of big companies and projects on their website just to show that they have big partnerships.
I say that because I have witnessed this, I was once checking out a new project and analyzing it, and I noticed that they have a lot of big tech companies as partners on their website but the reality was that those were just logos and they didn't have any of them as their partners.
Oh yeah, those 100% certified bullshits are quite common. Even fake websites use those logos of partnerships and certifications just to lead their users in the wrong hands. This is where newbie researchers stop. Just because they saw partnership even when it is fake, they'll just fuck it and invest to it.
Man I can even recall some bullshit partnership with MyEtherWallet before that turned out to be a phishing attempt to me when I tried out airdrops.