As of 2022-03-07, the Wikidata property Stack Exchange user ID (P10212) is used on 40 items as main value on statements (not counting qualifiers) of the Q and P namespaces.

Closest properties: by cardinality of intersection, by Jaccard index.

Display properties of the following types:                                    

Closest properties by cardinality of intersection

IDLabelIntersection cardinalityJaccard index
P646 Freebase ID 32
 0.0000
P7859 WorldCat Identities ID 31
 0.0000
P214 VIAF ID 31
 0.0000
P244 Library of Congress authority ID 28
 0.0000
P213 ISNI 26
 0.0000
P269 IdRef ID 22
 0.0000
P2456 DBLP author ID 20
 0.0004
P1207 NUKAT ID 20
 0.0000
P227 GND ID 19
 0.0000
P2002 Twitter username 17
 0.0001
P691 NKCR AUT ID 17
 0.0000
P1006 Nationale Thesaurus voor Auteurs ID 17
 0.0000
P1556 zbMATH author ID 16
 0.0004
P549 Mathematics Genealogy Project ID 16
 0.0001
P268 Bibliothèque nationale de France ID 15
 0.0000
P4955 MR Author ID 14
 0.0001
P1015 NORAF ID 14
 0.0001
P3987 SHARE Catalogue author ID 14
 0.0001
P3417 Quora topic ID 14
 0.0001
P7293 PLWABN ID 13
 0.0000
P864 ACM Digital Library author ID 12
 0.0043
P8189 National Library of Israel J9U ID 12
 0.0001
P349 National Diet Library ID 11
 0.0001
P5034 National Library of Korea ID 10
 0.0002
P648 Open Library ID 9
 0.0000
P5819 International Mathematical Olympiad participant ID 8
 0.0072
P4215 nLab ID 8
 0.0020
P2037 GitHub username 8
 0.0010
P2013 Facebook ID 8
 0.0000
P496 ORCID iD 8
 0.0000
P6634 LinkedIn personal profile ID 7
 0.0001
P1153 Scopus author ID 7
 0.0000
P8418 Oberwolfach mathematician ID 6
 0.0046
P2963 Goodreads author ID 6
 0.0003
P1263 NNDB people ID 6
 0.0002
P1695 NLP ID (unique) 6
 0.0001
P2397 YouTube channel ID 6
 0.0001
P271 CiNii author ID (books) 6
 0.0001
P1280 CONOR.SI ID 6
 0.0001
P2003 Instagram username 6
 0.0000
P1417 Encyclopædia Britannica Online ID 6
 0.0000
P2163 FAST ID 6
 0.0000
P5380 National Academy of Sciences member ID 5
 0.0012
P7982 Hrvatska enciklopedija ID 5
 0.0002
P3219 Encyclopædia Universalis ID 5
 0.0002
P1273 CANTIC ID (old) 5
 0.0001
P9984 CANTIC ID 5
 0.0001
P1960 Google Scholar author ID 5
 0.0001
P1563 MacTutor biography ID 4
 0.0013
P3222 NE.se ID 4
 0.0001

Closest properties by Jaccard index

IDLabelIntersection cardinalityJaccard index
P8124 CPAN author ID 2
 0.0339
P8754 OpenStreetMap numeric user ID 1
 0.0104
P8007 US Bureau of Prisons Inmate Register Number 1
 0.0099
P8827 GitLab username 1
 0.0098
P6837 Keybase username 1
 0.0094
P4411 Quora username 3
 0.0085
P7171 Hacker News username 1
 0.0080
P5948 CMI person ID 1
 0.0078
P5819 International Mathematical Olympiad participant ID 8
 0.0072
P8418 Oberwolfach mathematician ID 6
 0.0046
P864 ACM Digital Library author ID 12
 0.0043
P4942 Societe.com director ID 1
 0.0032
P4265 Reddit username 2
 0.0023
P4939 BFMTV.com director ID 1
 0.0023
P6403 TheatreOnline ID 1
 0.0021
P4215 nLab ID 8
 0.0020
P9541 MacArthur Fellows Program ID 2
 0.0018
P2070 Fellow of the Royal Society ID 3
 0.0016
P1563 MacTutor biography ID 4
 0.0013
P5380 National Academy of Sciences member ID 5
 0.0012
P3899 Medium username 1
 0.0011
P3226 HAS member ID 1
 0.0011
P2037 GitHub username 8
 0.0010
P3267 Flickr user ID 2
 0.0010
P8976 Lichess username 1
 0.0010
P3233 PhilPeople profile 2
 0.0010
P4252 All-Russian Mathematical Portal ID 3
 0.0009
P947 RSL ID (person) 1
 0.0007
P6677 OpenEdition Books author ID 1
 0.0007
P4450 HAL author ID 1
 0.0006
P2087 Crunchbase person ID 1
 0.0006
P3558 USCF player ID 1
 0.0006
P4174 Wikimedia username 1
 0.0005
P4862 Amazon author ID 3
 0.0005
P5463 AE member ID 2
 0.0005
P2611 TED speaker ID 1
 0.0004
P3789 Telegram username 1
 0.0004
P9795 ARPI author ID 1
 0.0004
P2456 DBLP author ID 20
 0.0004
P1556 zbMATH author ID 16
 0.0004
P2963 Goodreads author ID 6
 0.0003
P7400 LibraryThing author ID 2
 0.0002
P3553 Zhihu topic ID 3
 0.0002
P7982 Hrvatska enciklopedija ID 5
 0.0002
P3654 Chess.com member ID 1
 0.0002
P6023 ResearchGate contributions ID 1
 0.0002
P4491 Isidore scholar ID 1
 0.0002
P2930 INSPIRE-HEP author ID 2
 0.0002
P2847 Google+ ID 1
 0.0002
P1263 NNDB people ID 6
 0.0002