3 extra things to mention for JLambert93:
1) you can find more info why we don't delete paths on private property in the wiki -> https://wiki.openstreetmap.org/wiki/Why_we_won%27t_delete_roads_on_private_property (also in FR and NL)
2) if you still would like to discuss about the issue, you are more than welcome in the Belgian OSM chat channel -> https://matrix.to/#/#osmbe:matrix.org
3) the Belgian OpenStreetMap community is a group of enthusiastic volunteer mappers where we treat each other with respect. Please bear this in mind. Have a great day!