If you posted on the m4w real "dating" section you either heard nothing back from anyone, or you occasionally got a msg from someone asking if you were "generous$" or, again, you got something that was easily identifiable as a spam response.
The shutdown of the US version of the personals section was in response to the US Congress passing FOSTA (Fight Online Sex Trafficking Act) which seeks to subject websites to criminal and civil liability when third parties misuse online personals unlawfully.
For more information on the shutdown you can read this story.
All in all, it was for the overall benefit of society to get rid of the CL personals; that was not truly what CL was created for in any case, I'm fairly certain -- to become a giant cyber bathhouse or gay sex club.
A number of people including poor me may have encountered someone directing you with a link to click on in your email which directs you to a site named Craigs Personals.
Please read Craigslist personal safety tips before posting or replying to any ads (see Page).