| Status | Name | Position | Date Registered | Posts | |
|---|---|---|---|---|---|
| unusually_dead | 2021-01-26 | 0 | |||
| unusualpony | 2013-07-08 | 0 | |||
| unvagocioso | 2014-04-18 | 0 | |||
| Unwary | 2014-01-26 | 0 | |||
| UnwatchedAbyss | 2022-05-14 | 0 | |||
| Unwished | 2020-09-25 | 0 | |||
| unwoundpath | 2012-09-29 | 0 | |||
| UnwrittenTale | 2014-01-22 | 0 | |||
| Uny | 2022-05-20 | 0 | |||
| unyagay | 2021-01-29 | 0 | |||
| Unyne | 2018-08-14 | 0 | |||
| Unyo | 2016-09-30 | 0 | |||
| Unyta | 2014-08-09 | 0 | |||
| unz | 2018-10-23 | 0 | |||
| uokiuoki | 2019-03-17 | 0 | |||
| Uokka | 2017-09-10 | 0 | |||
| uomii | 2017-09-17 | 0 | |||
| uooheuoohe | 2014-04-19 | 0 | |||
| UoSOs420 | 2018-04-12 | 0 | |||
| Uosu | 2016-04-20 | 0 | |||
| uoyla | 2015-04-21 | 0 | |||
| Uoylya | 2017-09-10 | 0 | |||
| UP STAR | 2018-01-04 | 0 | |||
| UP-World | 2016-07-30 | 0 | |||
| Up4akabla | 2013-07-04 | 0 | |||
| Upah | 2014-01-25 | 1 | |||
| upatthemorn | 2017-12-28 | 0 | |||
| Upchakabla | 2013-07-06 | 0 | |||
| Uperty | 2023-08-13 | 0 | |||
| upewyweg | 2018-03-12 | 0 | |||