The forest is mapped twice:
- as a simple polygon way/866019680
- as a large relation relation/54847
So the large polygons can be deleted I think?
Note that IMHO it doesn't really make sense to have that many inners on the Foret dominial de Mormal: it's not because the current landcover happens to be clearcut, that it's not part of the forest anymore.

Heeft dit gebouw werkelijk een religieuze functie?
#surveyme

There is both a group_home and a nursing_home for seniors here. They do have different official numbers. Are they really two separate objects with almost exactly the same tag?

Has this power line really been out of use for at least 11 years? I would expect it to be have been either re-activated or removed by now
way/88143707

Is way/174411660 really 50 kV? Seems like a lot for a minor_line on poles instead of towers

I'm not sure there is a connection here. When coming from the South, we were forced up the hill and there was not really a way back down. We might have missed the path following the river, but it seems unlikely. Also, there's a gap here in the path along the river if you look at Strava (though that could be a GPS reception issue, given the rocky terrain)