: This likely refers to a specific group or entity known for repackaging software. "R2R" stands for "Release to the Crackscene," which was originally associated with cracked software releases but can also refer to repackaged legitimate software for various reasons (e.g., more convenient installation, removing activation requirements).
: This specific revision (Revision 8 of Version 9) was popular in these circles because it was stable and included the full suite of plugins released up to that point. The Impact and Transition Overview of Waves All Plugins Bundle "R2R" :