| Member | Join Date | Threads Started | Posts Made | Blog Posts |
|---|
 | UltraPlan | February 2, 2013 | 1 | 1 | 0 |
 | ululanter4 | May 2, 2023 | 0 | 0 | 0 |
 | uman90 | May 15, 2020 | 1 | 1 | 0 |
 | umarvaleed | January 1, 2019 | 1 | 1 | 0 |
 | umbrella | February 14, 2013 | 0 | 0 | 0 |
 | umbrellaman | December 6, 2016 | 1 | 15 | 0 |
| umen242 | January 18, 2015 | 0 | 0 | 0 |
| umfrog | July 14, 2023 | 0 | 0 | 0 |
| umidzevs | December 19, 2020 | 0 | 3 | 0 |
| umpyprof | October 22, 2024 | 0 | 0 | 0 |
| UnattendedBag | June 26, 2013 | 2 | 8 | 0 |
 | uncajohn | September 15, 2010 | 0 | 0 | 0 |
| uncanny | June 17, 2015 | 1 | 1 | 0 |
| uncfan11 | February 7, 2016 | 0 | 0 | 0 |
| UncleBoom | March 22, 2017 | 0 | 2 | 0 |
| unclecoaster | November 6, 2012 | 0 | 0 | 0 |
| uncledave69 | November 7, 2011 | 1 | 1 | 0 |
| UncleG | January 6, 2019 | 0 | 0 | 0 |
| unclejoe19 | December 9, 2009 | 0 | 0 | 0 |
| UncleMo | February 11, 2014 | 2 | 8 | 0 |
| uncleP | November 21, 2012 | 1 | 8 | 0 |
 | Unclesodaaa | October 31, 2024 | 0 | 0 | 0 |
| UncleWade | August 14, 2015 | 0 | 0 | 0 |
| UncleWayne | August 13, 2022 | 0 | 0 | 0 |
| Unclewayness | November 18, 2024 | 0 | 0 | 0 |
| Unconventional | February 4, 2014 | 1 | 1 | 0 |
 | UnderageHooker | January 1, 2020 | 0 | 1 | 0 |
| Underdog24 | December 12, 2014 | 1 | 2 | 0 |
| Undergrad | December 31, 2022 | 1 | 9 | 0 |
| Underground1979 | June 3, 2020 | 0 | 0 | 0 |
| undertherox | August 18, 2013 | 0 | 0 | 0 |
 | Unforgiven | November 16, 2015 | 0 | 0 | 0 |
| Unicor | June 27, 2024 | 0 | 0 | 0 |
| UnicornRider44 | November 8, 2018 | 0 | 0 | 0 |
| unionblue | October 25, 2011 | 0 | 0 | 0 |
 | Unise1987 | November 29, 2022 | 0 | 1 | 0 |
| united | November 15, 2016 | 2 | 5 | 0 |
| universal | March 19, 2014 | 0 | 0 | 0 |
| universalcam | June 27, 2020 | 0 | 0 | 0 |
 | universitycance | December 7, 2021 | 0 | 0 | 0 |
| unJon | July 1, 2018 | 17 | 4922 | 0 |
 | Unlucky13 | May 13, 2017 | 1 | 2 | 0 |
 | UnLuckySoul666 | July 27, 2021 | 0 | 1 | 0 |
| unlvhotrod | August 12, 2014 | 1 | 1 | 0 |
| unnaturalusr | June 23, 2012 | 6 | 13 | 0 |
 | Unnflori | January 18, 2025 | 0 | 1 | 0 |
| unobearfan51 | February 6, 2024 | 0 | 0 | 0 |
| unopine | July 28, 2016 | 1 | 1 | 0 |
 | unovegaswinner | December 16, 2023 | 0 | 0 | 1 |
| UnrealPHD | November 15, 2014 | 1 | 1 | 0 |
