In the sense of that you can be posting away with someone for quite some time and then
bam
Like when the alien fell down in Avatar when the human host awoke
The posters is gone and you have no idea
If they have gone
Where they are
Are they there but not posting
Are they ignoring you
Have they been murdered
This is what the lady Alien must have been thinking when matey boy kept collapsing
It is an Avatar moment. spooooooooooky.