Escorts posting on message boards

[Clueless]

I notice that some escorts start posting on the boards for a while and then disappear into the background-

Is this because -
They get their profile out there and get as much exposure as they need.
Or they find that the other posters are time wasters
Or they have a good business built up and want to keep a low profile
Or to avoid hurting someone's feelings don't post at all!
Or they just get fed up of the same old stuff
Or whatever

More late night musings.