This is a problem that's kind of wide spread in this area: https://osmose.openstreetmap.fr/de/map/#zoom=13&lat=49.723&lon=7.9694&item=3010%2C3020%2C3030%2C3031%2C3033%2C3040%2C3050%2C3060%2C3070%2C3080%2C3090%2C3091%2C3092%2C3100%2C3110%2C3120%2C3150%2C3170%2C3180%2C3190%2C3240%2C3250%2C3260%2C3350%2C3360&level=1%2C2%2C3

The original mapper has left the community years ago before I started, so I luckily missed the drama. I guess people hoped that slowly the weird tagging would be replaced with real values, but honestly, who is tagging surface types unless it is *really* bad in the moment or they explicitly set out to do it? I'm personally not a woods person, so despite being active in this region, I probably haven't touched 99% of the badly tagged ways physically.

At this point I'd *personally* bot-replace the obvious ones, like "Gras + Laub" → Gras, since Laub is a temporary thing, not a surface. There are different variations of +thorns or +scrub, which are harder to judge remotely. Maybe they are visibility=bad+surface=x? I don't know. Maybe collect all the weird values first and debate what to replace them with on the forums or something? 