Lots of people are ghosting or just simply not replying. It happens in different state of messaging. Sometimes from the beginning they do not reply, sometimes just after I sent the pictures he wanted... 80% of the people I cannot chat (and neither meet...)
There should be an option on which the user clicks, an automatic, polite message would be sent to the other that "you are not what I'm looking for" or something like that and the other user then should not be able to send any message to that user, but still see his profile. If the user does not use this button to refuse chatting neithers send any message, but reads the message, there must be restrictions and at the end, ban.
What is more, there must be a profile verification (both for existing and new users).