I dont want to argue but someone did it in SRO before the Clientless bots came.
If I recall someone named 0x33 and probably changed username afterwards that I cant remember well.
The thing he did was removed all rendering even that what you called loading of resources.
I tried searching his post back 2004/2006ish but no avail.
Well, Im not forcing you this but thats what there is to it.