As mentioned in the other thread there was an old beta thread but after three years (man that's a pretty long time!) it's become rather old and purple_drake has said it is fine to make a new version of it, so this thread is for any comments you want to give in regards to what the new one should be like. In a few days/a week at the most I'll go and remake the thread so give your suggestions now.
The previous Beta House thread in question!
Personally... the General Rules part looks fine to me as well as the specifics for mentors/mentorees. The types of beta readers available seem fine to me as well, but I do feel a neat addition to consider is that to apply to be a beta reader/mentor, one should supply examples of reviews they have already done, or even betas they have made if they happen to have those and are willing to show as an example. With the old version it was only examples of their own writing that was necessary to supply.