They are running a business but most of them do not realise that or just do not have the skills/intelligence to do so.
Agree 100%. When it happens you immediately think "private gallery scammer".
What is worse though is when it happens with someone who you know is genuine. As you start thinking "what have I said wrong, have I appeared creepy, or could she have misconstrued what I asked or said" And you start running your head through the worst things.
When really its probably just a case of the girl read your message seconds before she was going to start a punt so thought I will reply later. And then forgot about it and never bothered. Or she thought I will wait till this guy phones to ask. Or any other usual - what she thinks is - innocent reasons.
As an example, if I am going out and someone even just sends me a PM on a forum and I read it, I always reply back and say "just dashing out, will be back at likely 2pm will reply after that".
This one sentence I believe makes the person feel acknowledged and not ignored, or whatever.
And yet no WG does such a thing. And yet if they did they'd appear more professional and interesting, and most importantly avoid any misunderstandings taken in by the punter.