Just as a side note, myBB is still working flawlessly in this architecture yet Wordpress breaks every few days. Nice job myBB.

Glad to hear everything's ticking along nicely!
I guess I spoke to soon. Woke up this morning and all my stylesheets are gone. Not related to myBB but for some reason this yas3fs has done something as I don't see anything in the audit trail that shows me what happened.

Are they still in S3? I've not tried using yas3fs at all, but hopefully it won't have deleted anything.