Not all canonical chains in the world can be accurately divided into specific categories such as brand/operator. Ambiguity always exists. Therefore, we often need community discussion and the judgment of the maintainer to determine what it should belong to in NSI.

The following is a list of some classic cases to help contributors and new maintainers judge.

See https://github.com/ideditor/nsi-collector/blob/0594a6049c45e3bb91a96d6d29b443b164aff360/collect_osm.js#L33-L39

This threshold maybe looser in some situation such as in a OSM data shortage region, but at least 10 elements (Currently or will have in the future).

• https://github.com/osmlab/name-suggestion-index/issues/5625#issuecomment-958218478
• https://github.com/osmlab/name-suggestion-index/pull/5924#issuecomment-999635804

Waiting......

• https://github.com/osmlab/name-suggestion-index/pull/4987#issuecomment-803636623

• https://github.com/osmlab/name-suggestion-index/pull/4855 (A long time discuss about those 2 tag)
• Rejected case: https://github.com/osmlab/name-suggestion-index/pull/5727
• Merged case: https://github.com/osmlab/name-suggestion-index/pull/5801

⚠️  April 2022 Update
The use of *:wikipedia tag has been discontinued (issue #6481)

No, see

• Detailed information：https://github.com/osmlab/name-suggestion-index/wiki/Contributing#tags-required
• Wikipedia：https://github.com/osmlab/name-suggestion-index/commit/e3d25ab090e60f2a0eb4324230f79c2a30535bbd

Yes, but must "stick to a minimalistic set of tags".

See https://github.com/osmlab/name-suggestion-index/pull/6703

Also there are some situation don't need payment:#4696 #4105 #4976 #6701

Only those cuisine that representative to this restaurant, you don't need to copy the menu, NSI isn't a food delivery website.

I don't know

Like outdoor_seating or smoking? See reply in #7269

Current which language should be used in entry can see https://wiki.openstreetmap.org/wiki/Multilingual_names, but this isn't mandatory, as it may vary from case to case