The thing is that it takes only someone that has a good cryptocurrency knowledge to be able to identify or I have a doubt if they are being lured into wrong investment by scammers,
I agree with you that it takes someone who's knowledgeable about Cryptocurrency to be able to spot a scammer though scammer may come with different strategies to decieve people but someone with a good knowledge about Cryptocurrency won't be easily convinced or lured into making wrong investments only Newbies with little knowledge would easily fall victim.
Some people instead of making research about a project would just jump into it with the high quest of making money, those are the people these scammers are after, those that would quickly rush to click a link they know nothing about and register immediately not knowing that they're exposing some details to this scammers to get access to their documents.
Most times these scammers would come up with fake airdrops that looks very legit at first and after acquiring their fake token through task they'll request you pay certain fees to claim your airdrops those are the kind of scams people should note of and avoid them totally.
One of the funny thing is that even if someone decided to conduct a research about a particular project to know if they are real or not, if you are not careful sometimes it cannot even prevent the person from being scammed because there are scammers who normally disguised themselves to be an existing projects conducting a normal airdrop or selling there coin on more affordable price and when you click on the links to no if they are real it takes you directly to the project main site and if you are not careful you would be convinced that they are real and start participating, however someone has told me there experience about similar situation on how scammers develop a fake contract address and offering to deploy an existing coin to people after participation, so it was when she conducted her research she discovered that there contract address was different from the project they claim to be.