You forgot network admins!

Also most of the other overlaps:

Gamers and
Sailors: constant swearing
Connoisseurs: get told it’s not a real job
Admins: bothered by ping issues

Sailors and:
Connoisseurs: always in search for the nearest bar
Admins: Surfing in their free time

Connoisseurs and Admins: explaing stuff to morons who just want to consume

Gamers, Connoisseurs and Admins: their private equipment is top notch as well (and probably in the basement)

Admin, Sailor and Gamer: the unwashed masses