This site only highlights all the bad things happening on those sites - and the marketing teams there have most likely already been told by their developers what including 1 million cookies & 50 million tracker APIs will do to the performance. They want this gunk in there so that revenue targets can be met.
So the best bet is to put this up on GitHub where folks like me could learn from the code :-D
Maybe open source the worker code, but the whole website?
I do not think it is 'not useful'. I was - not very clearly - posing a question on what your idea was to put it into 'practice'. I.e., whether you were hoping to turn this into a business or an open source project by posting here =D
Merely curious! Thank you for sharing!