Hi and thanks for feedback.

> Not really true. OSM database hold history of also deleted objects

Yeah, true. But to find out the id of an deleted object to check the history  requires (afaik) further tools like overpass-api or whodidit. Thats not something a 'common' mapper uses before mapping. 
The mapping in this area is special. There are a lot of paths still used sparsely, even if they not mapped somewhere. So its possible they reappear on the ground someday. Additionally i found remains last weekend, so i would revert this.