[Geno]

when you upload to a server the content becomes graalonlines content. if they dont like that another server steals graphics from another server then they can choose to remove it. there is only a handfull of active servers and some content is shared between some servers.

i dont see the problem, for servers under development it really does not matter because they will never become hosted and if they do they die within a week.

there are no ethics involved. if you want to keep your custom graphics then start your own game. uploading them to a server that you rent, not own, leaves them up for grabs.