If you are in 6 weeks don't worry about it.
Some of my strains do it every grow.
I can't answer any of the technical questions about them.
The only thing i can say is from experience. When I see them late in flower I leave them. I have never found anything more than a few seeds.
Do not rip it off. I did that once and literally saw the pollen fall. That was my first time getting one. I had no idea what it was.