Why is a "Bitcoin HQ" needed?
Isn't the whole point of bitcoin that it is decentralized with no headquarters that ca n be raided, burned down, hacked, etc.?
Also, who would fund this?
You could call it something else if you wanted, Bitcoin Retreat, or any other name. It's not indended to promote centralization.
There are many 'hacker houses' around the world, and this would just be another one.
It could be privately funded or crowdfunded.