BioWare: Overwrite your SWTOR loading screen "at your own peril"
There seems to be a growing trend of changing your loading screen images in Star Wars: The Old Republic. In fact, it's getting so popular that BioWare community manager Joveth Gonzalez addressed the issue and warned players of the consequences of chaning the screen. Now, unlike most things in Star Wars: The Old Republic, changing your loading screen image won't result in a ban. But you could risk corrupting your files.
"We’ve noticed that many of you have been going into your SWTOR game files and overwriting the default loading screen," Gonzalez wrote on the forums. "While this has resulted in some very impressive custom loading screens, we need to remind you all that changing game files will corrupt your installation and force you to repair with the subsequent patch."
As Gonzalez warned, "Overwrite your SWTOR loading screen at your own peril."