No, I don’t see how the number of samples could translate to activity in that region. If you mean usage of that cell - We’re only collecting cell positions via contributions. We have no way of knowing the number of devices connected to the cell.
You can probably make a case for associating higher volume of samples for a particular cell to higher activity in that region, but it would not be a strong relation. Our data contributors are a very small percentage of the entire population.
OpenCelliD has better data in cities vs towns/ villages - this could simply be because cities have larger population.
You can produce a map of cell coverage in a particular area and then assume (roughly) the ability to have digital activity. For example, if you see a bunch of CDMA/GSM cells in region ‘A’ and see a bunch of LTE cells in region ‘B’ - region ‘B’ is more likely to have a larger digital footprint.