Is it safe to pluck mole hairs?

The fear of moles is only if they change size, the hairs in them are nothing to worry about, and it is safe to pluck them.  If you have many moles you should see a dermatologist about them, just to make sure they do not become cancerous.  Other than keeping an eye on them for growth, you can pretty much do whatever you want to them, except removing them yourself of course.