Hi muralito,
Here we have really 3 objects! If you read the english or german wikipedia article, it tells:that we have 3 itmes here: the full (both, thats what the wikipedia article is about), two sub-portions with specific names. The german one tells it more clear: the nation-border is separating them.
"The lagoon is subdivided into the Kleines Haff ("small lagoon") in the West and the Wielki Zalew (German: Großes Haff, "great lagoon") in the East."
It is not that easy here (I think that political reasons followed from WW2 play a role here).
KR, Alex

Hi Greeshmag, please do not enter typo-tags key="\", see
osm.org/way/571638481/history
Thanks, Alex

Hi mjaspard, please follow the OSM wiki,
use wikipedia=lang:Article (not http..).
Also only 1 wikipedia per object (one station = 1 wikipedia link) should be used only.

Details can be found here:
osm.wiki/Key:wikipedia#Examples

Thanks, Alex

Hi km2bp, please follow the OSM wiki for wikipedia-tag. wikipedia="pl:Name" not "http.."
Details:
osm.wiki/Key%3Awikipedia
Affected Item: way/209341765
Thanks, Alex

Hi Petr1868, I changed your typo tag ";"="major" to note.
relation 1738996
Regards, Alex

Hi gerdami, your relation has no tags (except type and (new value). Could you fix this please?
www.openstreetmap.org/relation/7717304
Thanks, Alex

Hi thenodifier, why do you add keys like "\" ?
KR, Alex

see osm.org/relation/8035577/history

Hi emvee, why do you add keys like "|" ?
KR, Alex

see osm.org/node/5417982214

Hi CENTRALHUB, I fixed a typo in key at way/559268841. regards, Alex

Hi Malik Saadat Awan, please follow the OSM-wiki, wikipedia=lang:Article, not wikimapia !! you could make it source or url or note.
See osm.wiki/Key:wikipedia
Thanks, Alex

Natürlich stimmt das nicht, aber ich habe den Wert als Erinnerung als note gelassen.. Alex

hi zorglubu, amenity=hotel should be tourism=hotel, see OSM wiki.
KR, Alex

hi Quentin SALLES, please fix your new tag "+ = #572F08" , part of relation/1531239 . Thanks, Alex

Hi KlausH2, please read the OSM wiki. 3 items: nodes should not have a key/tag "type", extensions-tag gives no benefit, and having multiple tags with same value (cmt, name, *_name, desc) also is not needed. Thanks, Alex

hi CENTRALHUB, you added 3 strange tags ( ' = DigitalGlobe␣Premium␣Imagery ). Please fix this typo.
Thanks Alex

hi Marcello-, what means tag "+" = "1965" ?
Thx, Alex

Hi zsolt d, why do you added "4=1" tags?
KR, Alex

Hi 98Ujm, please follow the OSM-wiki (wikipedia=lang:Article), see osm.wiki/Key:wikipedia
Thanks, Alex

Hi Timothy Smith, I changed your (dead) wikipedia link. KR, Alex

what means .=yes ?
KR, Alex