I war-drive antennas. When I have visual confirmation on one, it would be useful if OpenCellid could provide some way to send in the exact location (eg location-tagged photo, along with signal/cell info). The servers could then check the CellID data they have collected against the supposed exact location.
I know there is a flag already for exact location if the mobile operator provides the cell location. Maybe apps like TowerCollector could flag measurements as “tentative exact”?