Hey, That's great that you have lots of traffic, I would, however, advise against any form of auto-reply to unanswered questions in your community and suggest that you focus on trying to foster more peer to peer to help reduce the number of unanswered topics. As a general rule if someone has taken the time to post in your community they have most likely already googled an answer, looked at your site and so giving them a boilerplate reply with some links they have no doubt already looked at isn't likely to answer their question but more importantly could give them a bitter taste in their mouth with regards to your site and if they don't have a good experience then who's to say they will come back, continue to engage and who knows maybe one day be a superuser... On that point, do you have a superuser scheme, have you thought about trying to get your SUs to swarm around these unanswered topics? You could build some cool tools to help with that!
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