PBN Backlinks Still Worthful?

Some PBN backlinks are still worthy but as some people offering that 50 or 100 PBN links for this price etc. ....... So my question is PBN links still worthful?

I see in some PBN networks that if he (Who manage PBN) got good offer then add restricted theme contents and links also like Gambling, Pharmacy etc.. So backlinks from these types of site will hurt ranking for sure.

Actually i listen from a person who is offering PBN links .... When i ask him for process then he said some common...

PBN Backlinks Still Worthful? WordPress ...