Can we ever rely on this data ?
We would never be able to gauge the P2P exchanges , the buying and selling that is going on in the system , nor we would be able to analyze this curve fully with no error in measurement.
The thing is , it is made in this sense that it's hard to actually keep a track of everything.
I do believe that it's something that we cannot find with absolute certainty.
It's not absolute cetain. It's like weather report. It gives you fully accurate current weather condition, but it can not tell you what is going to be a weather like in next hour. Nobody can predict with certantiy.
But hopefully you have information and this might be useful for your trading. I mean, it's still more likely to snow in December, than June, if you know what I mean.