They are blind and stupid. Most of them still think Bitcoin Transactions are fully Private and then they find the truth the hard way.
Yes that's the reality, those who think that Bitcoin is completely private, they don't know how Blockchain technology works, all transactions are very transparent and there are indeed some ways that are done to make it difficult to find transactions by using the Mixer Platform, but it is completely not transparent and the FBI or anyone can do detailed tracking using some trace wallet tool such as
https://intel.arkm.com/,
which allows tracing on all transactions carried out in great detail.
There are situations where this is actually good. Scammers thinking Bitcoin is Private will ultimately lead to revealing their own identity, which is good. But those who do it simply for attention can not comprehend what risks and consequences truly are.
Yes, in the end everything will be on their main wallet, scammers will be easily caught and they sometimes do money laundering but they are also too careless.
People who just want to get attention, don't use any tools to try to eliminate traces of their transactions, it is done manually and yes their address can be known very easily because of their own carelessness.