Being a Goatboater for 20 years thought I would throw my 2 c in (I have ridden shortboards at a decent standard for 35 years as well).
The comments so far are spot on re the perception of 'goatboats' and being one of a few hundred guys who could actually ride one well, made it difficult. My own attitude was one that I see mirrored by the 'ettiquette rules' on this site. You are on a craft that is easier to catch waves on, so why be a hog cause you are gonna get heaps anyway. Being a regular at places like DY point, Fairy Bower/Winki and the like, meant I knew all the local crew anyway and showed appropriate repect. I even surfed large Pipe on a ski with guys like Johnny Boy Gomes and the heavies of the time in the water and had no problem. I kept a low profile and above all didn't drop in! The following year the World waveski Titles were held in Hawaii (86) and a lot of the guys made real arses of themselves. I heard that from that time goaties were hated there.
There other type of goatie was the beginner or person not from a surf background with no idea of the 'rules'. These were the majority of riders unfortunately. They generally caused havoc, but most surfers just steared clear of em. Good education is the key here and that means shops, other riders and great sites like this play a part.
The worst guys at being hogs will always be the competent riders unfortunately and longboarders are now the biggest offenders (if you ride a shortboard that is). Not all, but a minority take advantage of their craft and take over the break. Surf the Bower on a medium sized day and you will see what I mean. Now those guys are getting jacked off with the SUPs I am told...ahh the irony.
The bottom line is that hogs will be hogs no matter what their craft, it is just a matter of how easy it is for them to be one. SUPs already have a bit of a reputation here on the northern beaches for being a bit of a pain from what I hear from my surfing mates but nothing like the mid 80s goatie mayhem...yet.
My intention is to steer well clear of crowds but gee, when the Bower is going off, that could be difficult.