Most people who have been in the Novice Network will be familiar with its problems. The quality varies wildly per server with some NNs basically just being global chat and personal hangout for the server's mentors with no one putting much thought into helping new players.
With the goal of making the concept of the system more focused and effective as a tool for new players to get help, I propose removing the Novice Network as a chat channel and instead replacing it with a bulletin board system, the "Beginner's Board"
The Beginner's Board would be a globally accessible message board-like interface accessible via a sprout icon on the HUD. To avoid bot pollution, the same system of invites can still exist, but anyone on the board can see this icon.
On this board, new players and returners can post questions which appear as topics in a list. Anyone on the board can open, view and respond to an existing question, but ONLY sprouts and returners are permitted to post new questions. Mentors may only respond to existing questions. The question asker can reply to responses to ask for more details or clarification, and in this case respondents may reply again to help. If a question or reply you've posted receives a response, the HUD icon lights up to notify you.
The board could also have a system of ratings. Sprouts and returners may be permitted to rate responses to questions as "helpful".
The number of "helpful" ratings a player receives may be tracked and could serve to prioritize their responses, appear as a "trustworthiness rating" next to the player's comments on the board, or potentially progress new mentor achievements. The interface could also provide the option to report bad or abusive responses, which could penalize repeat offenders by temporarily limiting their access to the board, disabling their mentor status, or triggering a GM review for serious cases.
The board would display the 100-200 most recent questions, with older questions gradually falling off the board as new questions are posted. Ideally players could still view responses to their own questions even if the question itself has expired. Some limit on the number of questions a player has active at once should be there to prevent abuse. Question askers can voluntarily close any of their active questions which removes it from the board.
Due to the fact that sprout status is tracked per-character rather than per-account, it would be possible to abuse the above system by creating new characters, so I think such a system would also have to come alongside a change to make sprout status tracked account-wide, or otherwise preventing players from joining the board as a sprout if they have a non-sprout character. However I think that even without a system of ratings, the board would be an improvement over the current Novice Network.