Hi whats happening, the view of OSM has changed, https://www.openstreetmap.org/#map=10/51.0638/3.7779&layers=G
Whats happening or is it just a technical problem, it does not look right or I could be wrong.
You enabled display of GPS traces. You can disable it in layer settings, see https://wiki.openstreetmap.org/wiki/Browsing#Public_GPS_traces for related info
Mateusz, + 1, correct I forgot it, a nice detail most traces are in residential area’s and some of them even over primarys in cars.