So how is it be open source and not open source at the same time, exactly? That at least you can surely stick around to answer.
The page is simply wrong/outdated in that regard,
all code necessary to run a validator is publicly available (before that access was only granted on demand to a few dozen developers outside OpenCoin) under an MIT license (just like Bitcoin-QT) on github:
https://github.com/rippleThe server is called "rippled", the client "ripple-client" and it uses the JavaScript library "ripple-lib". Also quite a few other projects are also available in source code there (e.g. a market overview page).
There is nothing that can or will stop you from bootstrapping/running your own Ripple network or forking it other than the limitation that this can't be called "Ripple" any more (similar to Litecoin, Dogecoin, Namecoin, ...coin which use mostly bitcoin code but not the Satoshi block chain).
"shill" "protecting my investment in that obvious scam"