Most people are generally lazy. They upload text to LinkedIn full of "genuine", "honest" and "load-bearing".
Yes, this watermark will be easy to strip. It is still valuable for the vast majority of times where people just don't.
Of course I would want my code formatting tool to normalize that all to plain 0x20 spaces. But it would still be a helpful "brown M&M" test of did you even read CONTRIBUTING and run the code formatter before submitting this PR?