How long can a player be idle before he gets kicked? I don't think Otservlist allows more than 15 minutes.
Yes I do have more than 15 minutes idle kick time that is because all players should have the same advantages as the ones who uses an Anti Idle software, I haven't seen anything in the Otservlist rules about max 15 minutes idle time.
Only thing I found was this:
http://otservlist.org/faq said:6. My server has been banned! Why?
We do not accept servers with modified/false informations (i.e. number of online players, record and uptime). Usually such servers are instantly detected and banned from otservlist including ip ban so it is harder to add a server in the future. Keep in mind that if you cheat sooner or later we will catch you. You can also be banned for faking other servers (e.g. same name or website) so better think twice before you start breaking our rules!