On the surface, it makes no sense. Grease makes thinks slippery, slidey. Why would you want to grease your bolts?
Because, when you do they will screw in smoothly and you can adjust them to the proper tension. Too loose, things slip. Too tight, things strip.
A spoon full of sugar… 100 years ago… was considered medicine because the medicine was so nasty.
What do grease and sugar have in common?
I don’t know, but I do know you’ll get a lot further down the road by using them.