Dating site clone
It's hard for the dating services to keep up with them since so many are created (there are automated programs that can actually create them).
With good software filters and manual checking of profiles they can be for the most part easily flagged as fake and then removed in time.
If you join to message her she may not be able to respond unless she paysÖ and she may not be willing to do that. How can you know the real people from the scammers?
The larger sites also have a public image to protect, which works in your favor.
I’m not saying that you should never respond to messages that meet these criteria, but if you do, proceed with caution! Remember, online or not, real world rules still apply.