To be honest, I'm not a big fan of 'Yggdrasil'; firstly, a lot of people won't be able to spell it and don't know what it means (saying there's a shortening is fine, but then the shortening also loses the reference!), secondly it doesn't really say anything about the forum or its purpose, it needs to be explained - and... well, without meaning to imply it was the intention, it comes off as a bit pretentious, to me. :/
How about 'Readback'? It's a VN feature, and also gives the idea of being introspective and self-critical. As a bonus, the shape of the word reminds one of 'feedback'.
