Just re-read what you said "YES! YES! YES!" to in quoting @Cam's post then back up your words with real facts.
Opensim was created from scratch borrowing only the SL protocols and designed to use an LL viewer. Cam asserted the code originally came from LL and you agreed with that.
The Opensim code is the work of the Opensim developers who were not even allowed to work on viewer development.