Well I have 48 playing nicely with each other (V-1.10). If there is such a thing as a limit, then it will require deciding on priorities when installing any mods.
So question still stands.... but thanks for the input.
Witcher 3 forums on Nexus..sorry can't remember the exact thread. Since Nexus is good but not solely dedicated to W3 as here I thought to get an answer from someone who is sure of their facts or is an authority. If I had my druthers..it would be that this is so much unsubstantiated nonsense. But better safe than sorry.