Honestly Lung, from being on and watching you come on and leave, you yourself honestly don't exactly give that wonderful warm feeling when you type.
Typically when you come on to say--
The RPC your intro in to say oocly hello is just like:
(hello)
I tend to see all lower case letters as being someone who is either being cold, or kinda upset and thus tend to leave them alone. After all, the biggest curse of text is that we can't see someone's face or hear their voice, so we have to go by how the text looks.
If you wanted a warm reply back you probably should at least do like:
(hello!)
Or
(hello! how is everyone?)
Something that will give a bit more meaning then just:
..hi... I'm here... yeah...
So, probably keep that in mind when your typing a hello. Make it warmer and you'll get more responses.