im with u all the way 100 percent on this topic. i have fish many early mornings at clifton and in some cases getting there as early as 4 am in hope of some squid, at this time of the morning it is still dark and it is impossible to seen what you may be stepping on. i have noticed left over bags of pillies, rubbish, chicken mince, hooks, line, sinkers, beer bottles and have even found small fishing knifes. the wharf is there for everyone to use and respect.
if you can make the effort to make the messs, you may aswell make the effort to clean it up.