I agree, it would be nice if there was a file server set up where we could share all kinds of historical data. Most data providers only give you a few weeks of intraday data for a high monthly fee. A few weeks of data is hardly of much use for any real backtesting.
You can have a CD made with historical data but that can cost hundreds. Then six months later your CD of data is too old and you have to buy a new one.
As far as I understand, we, the traders created that data. I don't think that anyone has an exclusive right to it. Shouldn't it be ours to share or do with it whatever we like?