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.