This is done by an entry in the Wiki. Here's a brief description of how it works:
https://github.com/JOSM/tag2link/#tag2link

Hi,
you used a new tag here:
wikimaginot = https://wikimaginot.eu/V70_construction_detail.php?id=10461

It would be better to have it in a common 'url' or 'ref' tag, e.g.

ref:wikimaginot = 10461

url = https://wikimaginot.eu/V70_construction_detail.php?id=10461

Hi,
you used several "waste:xyz" tags here that are not used in any other places. Please have a look to the common tags which are "recycling:xyz":
osm.wiki/DE:Tag:amenity=recycling?uselang=de

Hi,
could you check this lake? It got a strange "wlw" tag:
relation/1261455

I don't think we already have a tag for this.
Here are some ideas:

It could be "landuse=recycling" - focusing on how this area is used.

It could be "man_made=recycling_place" - a structure (platform, marked area) for recycling

There could also be a new value for "recycling_type" - currently we only have "container" and "centre"

"street:old_name" is not a tag that is in use anywhere. Adding an "old_" in the middle of any tag is very unlikely to be supported by any tool.

It is the name of a street that no longer exists (in the place this highway is located). The proper tag, if you want to keep the "street:name" intact would be "was:street:name".

As the street itself doesn't exist anymore and the footway is the sole thing remaining, "old_name" seems perfectly valid to use in this case.

Hi,
please check all the objects you uploaded here. None of them as any common tag like 'amenity' or 'shop'.

Hi,
what do these points represent? They don't have any common tag.

I reverted these changes for now. Please feel free to import them again with proper tags, and following our Import Guidelines.

I reverted this changeset: It contains only 1000 nodes without any tag

Something went wrong with this import. All the objects don't have any valid tag. The mandatory link to the documentation of the import is missing.
Please read osm.wiki/Import/Guidelines

You want to tag the area that contains all the containers and (depending on design) might have a different paving style or some kind of small wall around it?

Hi,
some buildings got a strange 'Unit' tag. Could you check that?

Wer denkt sich sowas aus für eine öffentliche Ladestation? Diese Stecker passen in eine Menge Geräte die bei 36 Volt einfach in Rauch aufgehen würden...

Einen gängigen Namen kann ich nicht finden. Die beiden kleinen stammen aus IEC 60130-10, aber haben dort auch keine Bezeichnung.

'name:kmal' didn't exist until a few days ago and 'ref:kmal' was used a lot less than 'ref:KMAL'.

Could you check this object, it got a strange recycling tag:
way/1436953392

Zweite Frage: Was ist "socket:rosenberger"?

Why this change? Using capital letters in 'ref' and 'name' for the name of the operator is very common. For 2/3 letter abbreviations it also prevents conflicts with language codes in name tags.

I didn't add this tag.

Hallo,
hast du irgendwelche Infos zu diesen Steckern?
z.B. socket:dc_barrel_5.5x2.1

Das Problem ist, dass die Belegung von solchen Rundstecker nicht genormt ist, weder die Spannung noch die Polarität. Wenn die hier öffentlich zugänglich sind, muss irgendein Standard dahinter stecken.