A reasonably good solution to mitigate the “profile pollution” is to create a Github organization for these kinds of forks (I use <username>-forks)
As a side effect this adds more organization icons to your Github profile, making it appear as if you're such an important OSS contributor that you're an official member of the Username Forks Alliance :)
Many automated vendor/package management tools will not automate pulling newer changes from upstream. If this was instead a simple a read-only version/tag, it is easy for those tools to provide upgrade/update path.