Comparison to fordyce spots/warts/herpes: fordyce spots occur in larger numbers (50-100's) whereas herpes/warts are fewer in number? is this correct?

Sort of: There is no rule that says prominent sebaceous glands (Fordyce spots) occur in larger quantities than hermetic lesions or warts but they generally do. Fordyce spots are not a disease and they are not transmissible

Not quite : Still need evaluation to differentiate them. Herpes and wart can be easily differentiated in the eyes of clinician and Fordyce spots can occur in smaller numbers

Partly: It varies. Fordyce spots are visible sebaceous(sweat)glands that are a normal variant. They appear as rice sized tiny papules raised above the surface of the skin. Typically they are very numerous on the scrotum and vulva and less so on the penile shaft. When few in number they can be confused with HPV or warts. You can see pictures of all 3 conditions by going to Google Images.