Bitcoin's source code is also stored on GitHub. Does that mean it's centralized?
But, you have no idea what a site like this forum is, with such "decentralization", do you?
In fact, for you, what is decentralized?
It's just that not even torrents - perhaps the most decentralized products that exist on the internet - are really decentralized.

Arguing for the sake of arguing much?

You didn't answer my questions, you just keep making new questions demanding answers...
If nothing is truly decentralized (not even BitTorrent), then it all seems an exercise in futility.
ps: Did you personally know what it would take to create something like Bitcoin?
There were many naysayers back then, I can assure you...