Hair and Pimple Growth Through Scar After Mole Removal. What Does This Mean for my Scar?

I had a mole removed off my face which left a 2mm raised hypertrophic scar 2 years ago. To my surprise facial hair and occasionally pimples grow out the scar, when I thought hair and pimples cannot grow through scar tissue. When I dont touch the scar for a while it is white however if I rub it, it becomes slightly red. What does this mean for my scar? does it mean the skin their is still healthy and perhaps the scar still has a chance of improving more? Thanks.