But what's the actual implementation? Just suggesting a hot topic might have applications without specificying how isn't really starting a discussion. As other have said watermarks deter unauthorized use, they're not a proof of ownership.

Don't take downvotes so personally, they're more about weeding out bad ideas from good ones than a reflection of your worth to the community, this isn't reddit where we care about karma count. If you fix up your comment instead of complaining you might see those downvotes get reversed (I've had that a number of times).