Summorizing what has been said here and my own experience from the year I’ve been playing this game, I can come to only one conclusion. That may sound offensive to some, but actually my message here is very positive.
Those are responsible for the decay of random rp on this server who ever go out of character and stop rping. They add to the jumping crowd of non-roleplayers and make it impossible to even catch them for some rp. They also don’t see any rp around them for they just jump and rush away. You go out of character - you make the very communication with you impossible.
On the other hand, as a player who remains always in character, no matter what ‘aspects of the game’ I am enjoying at the moment, - I can tell there are always people around who are responsive to rp. The only thing you have to do is… roleplay with them! As Vooji mentioned - if you want it to happen, you have to work for it.
I just disagree with the word ‘work’, for myself it’s never a work but a pleasure - the reason why I decided to roll on an rp server in the first place. Doing stuff out of character seems pointless and boring to me. And I know that’s not only me. Those who want to play out of character and only occasionaly go in character for some dnd stuff - they can actually do it on any other kind of server. An rp server is for this - you play and interract with other people as a character, not as a player behind the monitor. And that makes an exciting adventure, the whole game becomes one neverending rp-event.
Opposed to what some claim here, I can confirm - random rp happens all the time on ZT, I run into people who actually roleplay their characters, literally every day. We may only share a few words or emotes, or have a long conversation that will lead to a new storyline involving more people in the future, or just pass by each other - this way or another the rp happens. The only thing you have to do for getting it - is stop jumping around in-game while complaining about the decay of random rp out-game, and start roleplaying your characters when you log in. That’s simple as it is.
Those who really want some roleplay - they always get it.