And i'm not on a developer team forum ?!?
If you have an official rom , you should post on their forum ! But i'm on Xiaomi.eu Rom and I post the problems I found on this forum ! I'm sure that this team will fix the issues from their part , and the ones ported from official rom will be fixed by Xiaomi team , or not.
For me , this forum , it's about sharing the experience with this rom and if a problem it's reported by many users then the Xiaomi.eu team will see if it can be fixed by them , or not.
I , personally , don't know what errors are from this rom or the official one , but I think that useing betas it's about sharing the experience.