what are your strategies against such sites tracking you?

Close and never go there again. If I’m bit enough times, it goes in the hosts file for blocking. If I really need the stuff on there, I try archived versions on web.archive.org or archive.today

My point was that it’s not so much “fair reasoning” as just a statement of that fact.

That’s just saying “we want to sell access to our code, so we can’t make it open source”. Basically the definition of proprietary software, no?