Currently Novice Network will only kick people for not taking any kind of action for 30 minutes straight.

However, this does not resolve the issue that the vast majority of mentors in Novice Network do not use it, and are thus oft blocking out the mentors who are actually interested in helping or making conversation at prime time. There's also the matter of people perpetually taking up space by either logging out in instances (Which avoids the current auto-kick) or running bots while they're AFK, which keeps them active and prevents a kick, both of which could be potentially addressed by requiring speech.

I don't think requiring people to send a message in the Novice Network channel every 30 minutes to avoid a kick would be unreasonable since players could simply rejoin if they are actually interested in using it and simply waiting for the ideal time to speak.