BUR #5117 has been approved by @evazion.
remove alias copyright_notice -> watermark
A copyright notice (e.g., in post #4258988, post #4440253, and post #4444544) can be easily distinguished from a watermark (e.g. in post #4406223, post #4426033, and post #4440070) simply by the presence of the © symbol or the word "copyright". The two serve different functions, convey different information and appear in different contexts. And importantly, a copyright notice is less likely to be visually intrusive. I think there's a solid basis for treating these as two different things.