I have just tried this on multiple servers (5) and it works fine on them all.
All you have to do to get sent to BotJail:
1) Create a noob Lv.1 and give it the DBs you need.
2) Fill the rest of the space with junk like Lv.10 rings
3) Logout your other chars on that IP (Just incase).
4) Make sure your noob ISNT using cotobo (Just incase)
5) Scroll screen to far corner
6) Jump as far as you can and drop atleast 2 items
7) If your not in BotJail... do step 6 again.
Normally you get sent to BotJail after only one try of step-6... but sometimes it has taken me 3 tries at step-6 to be sent there.
...you can even goto BotJail FROM BotJail which is kinda screwed-up (It teleports you to entrance place but doesn't increase the DB payment)
Have fun playing with the "bug"