It makes sense, where the data is available to you, but modern maps contain attribution that has to be licensed from 3rd parties(RDS/TMC codes for instance). Yo

It makes sense, where the data is available to you, but modern maps contain attribution that has to be licensed from 3rd parties(RDS/TMC codes for instance). You cannot include those, since you don't own the copyright. Another example was the 7-digit postal codes in the UK: Before the UK did this big open data push, those had to be licensed as well. I am all for open maps, but some things are just impossible to do legally with OSM.