Il est de toute façon très difficile et très laborieux de tracer des tracks parallèles sur de longues distances (et qui tiennent correctement compte des courbes, ce qui n'est pas le cas des éditeurs osm actuels).
Comme le dit Pierre, il y a une tendance à ne faire qu'une seule trace (bien que les allemands semblent faire une trace par voie).
Il y a cette proposition:
osm.wiki/Proposed_features/tracks

pour signaler combien de voies sont symbolisées par le trait.

Me too.

Yes, this is really a bad idea. Many of the Wikipedia geodata are imported from sources not allowing commercial reuse or from googlemaps.

Optimizing Ways does not reduce database storage capacity - at least in main server. But you are right for exports.

Yeah, it is case sensitive. And you must really type the credentials and not copy/paste. Someone else had a similar problem because his copy included some hidden characters.

The problem again is not against a bot. The problem is this principle of making new change rules without any communication and waiting complains afterwards. So people discovering such changes by accident are surprised and suspicious about other changes that nobody might notice without checking carefully the logs.

It's not a state. As you said, it is a territorial collectivity which is similar to a french region but with a special status and small autonomy. Either set place=region or "place=territorial collectivity" which is the reality (but will not be recognized by renderers). BTW, the tag name is supposed to be the local name. Therefore, name should be the name:fr content.

It's great if wikipedia and OSM could work closer. But it does not exempt Wikipedia to give the attribution, which is not the case here:
http://en.wikipedia.org/wiki/St_Cuthbert%27s_Society

Bienvenue en Alsace. Attention le terrain risque d'être glissant cette semaine !

Beau boulot ! Mais je vois que tu donnes la source "cadastre...", ce qui est bien. Mais il manque l'année de mise à jour ="AAAA" à remplacer par celle définie sur le site www.cadastre.gouv.fr pour cette commune (en principe 2008 dans la plupart des cas), et ça sera parfait !
Pieren