I have had this happen to me. It starts off as a friendly email, then it goes into a long history of their personal life, Not even replying to any of my questions, So I play along with them (just wasting their time as well as mine.)

I usually get the ones that need money to help them on the final part of their trip to meet me.

So I usually ask them if they would mind if I could come personally over there in my private jet, or my personal yaht. So I can help them with brining more of their personal reminders of home, so they will tend not to get homesick so easy. For some unknown reason to me, I never seem to get any replies after that being asked? Go figure?

I keep undesirables in my favorites section. They're worth any extra attention you might give.

got a few of them at the moment.

on another site, yes. I even got emails from these people.