Pipeline,
I do not believe that good quality UserTracks would pose any threat or competition to RealTracks.
Contrary, it should in fact bring more people into the pool.
Look at NI + their branded libraries and all 3rd party instruments made for Kontakt, etc. I think that is a very good example how 3rd party content works for the benefit of the NI and for musicians who use it.

I believe PG tries to find middle ground for the current users and their RT releases are balanced, but many styles and instruments simply not there. Would I buy a few sets of UserTracks to accompany styles I want to try? Sure! Would I still upgrade BIAB with new RTs - absolutely.

You are one of the biggest contributors to this forum / community and your tech knowledge is far above average user. I watched your videos on ReaTrak and it is a huge step forward to bring UserTracks to life.