If its free its worth claiming for mate. Its just that you should study first the project you are claiming for. Even its not a ton project or any other projects, free nft is good and likely to cla by everyone why you shouldnt? Only those who are joining on scam projects would be scare to get a free nft. I see that you warn others about free. Why would you claim something you knew you didnt join right? Thats something shady and must avoid. But if you able to get some for free then thats good for you. Its just a matter of due diligence.