Hallo fblaese :)

Thank you for updating OpenStreetMap :)

I'm one of the volunteers, and I'm writing to you because I saw you had added "review_requested" on changeset https://www.openstreetmap.org/changeset/167950730 

The addition of the two barriers is good, thank you :) Also thank you for having a descriptive changeset comment, it helps a lot! :)

Based on my understanding of what you wrote, I would probably not add access=private to the paths https://www.openstreetmap.org/way/505645737 and https://www.openstreetmap.org/way/773730098 This is because, we don't which parts of the paths are in private land. In other words, we don't know whether there is a fence at https://osm.org/go/xwYL2uu7W?m= (then adding the access restriction would be correct), or whether the private land ends at some other point of the paths, e.g. at https://osm.org/go/xwYL5TGGl?m=). If you do know that there is a fence at https://osm.org/go/xwYL2uu7W?m=, then the whole changeset is fine :)

Feel free to send me a message if you think I can help with anything :)

We also have an OpenStreetMap forum, with sections for Greece, Germany and other countries: https://community.openstreetmap.org/

Thanks again for updating OpenStreetMap and happy mapping :)