@mcliquid, the official documentation corresponds to the wiki page and not to the talk page. The sentence "Until a consensus is reached please discuss with the original mapper before changing an existing value's state of abbreviation." has been removed from the wiki page (i.e. official documentation) in this revision: https://wiki.openstreetmap.org/w/index.php?title=Key:destination&diff=1284776&oldid=1284338 therefore this provisional policy is no longer in effect as long as this sentence is not reinstated on the wiki page (not talk page). Furthermore, the content of the signpost here is "St. Gallen" but it would be *read* from beginning to end as "Sankt Gallen" and since the sentence "as it would be *read* from beginning to end" adds to "the content of signposts or ground writing indicating the names of the locations that the tagged way is heading to" without any contradition, then both rules apply.