1. Who maintains and develop bitcoin and its technology? (I think bitcoin.org)
bitcoin.org is website to show information about Bitcoin for general user which maintained by bitcoin community at
https://github.com/bitcoin-dot-org/Bitcoin.org.
No... my post was a joke. It doesn't matter if you can generate 2^256 private-keys (and of course you can generate as many as you want). The thing is that it would take billions and billions of years before you could find the private key of a funded address.
Unless OP actually find weakness on RNG which used to generate private key on specific wallet software.