That's kind of interesting problem. We did thought about it, but since it's just a quick demo project, we didn't bother. 1. How to measure a credibility of dat

That's kind of interesting problem. We did thought about it, but since it's just a quick demo project, we didn't bother. 1. How to measure a credibility of data people submit? 2. How to take into account ageing of data? E.g. due to inflation.