| Member | Join Date | Threads Started | Posts Made | Blog Posts |
|---|
 | Ord2712 | January 29, 2023 | 1 | 3 | 0 |
| Ordnance | April 23, 2020 | 0 | 0 | 0 |
 | orea307 | March 12, 2019 | 0 | 0 | 0 |
| OregonGambler | April 16, 2023 | 0 | 3 | 0 |
 | Oregonscott | February 15, 2021 | 3 | 9 | 0 |
 | oren1976 | May 11, 2015 | 0 | 1 | 0 |
 | Oreo5602 | December 23, 2019 | 0 | 0 | 0 |
 | originaliets201 | July 10, 2019 | 0 | 0 | 0 |
 | originalscore | March 30, 2019 | 1 | 1 | 0 |
| orionstars | April 20, 2022 | 0 | 0 | 0 |
 | orionstars5 | November 21, 2023 | 0 | 0 | 1 |
 | orionstrike | August 20, 2024 | 0 | 0 | 1 |
 | Orivz1974 | June 17, 2024 | 0 | 0 | 0 |
| OrkeAA | February 6, 2013 | 3 | 8 | 0 |
| OrkFromPluto | July 17, 2015 | 6 | 10 | 0 |
 | Orlando2001 | March 15, 2021 | 0 | 0 | 0 |
| orodric321 | September 29, 2020 | 0 | 0 | 0 |
| oromedalla | April 21, 2015 | 0 | 0 | 0 |
| Orooola | September 12, 2018 | 2 | 2 | 0 |
| Orooola1 | September 12, 2018 | 2 | 2 | 0 |
| ortega559 | April 14, 2024 | 0 | 0 | 0 |
| Ortensia2020 | November 4, 2021 | 0 | 0 | 0 |
| osamatariq | April 15, 2017 | 0 | 0 | 0 |
 | OSCAR | March 25, 2023 | 0 | 0 | 1 |
| oscar33 | September 6, 2011 | 10 | 59 | 0 |
 | Oscar92082 | July 22, 2024 | 0 | 0 | 0 |
 | OscarDelgado | January 16, 2015 | 0 | 0 | 0 |
| OscarDelgado11 | May 31, 2017 | 0 | 3 | 0 |
| OscarJ | February 24, 2014 | 1 | 1 | 0 |
| OscarZed | July 7, 2024 | 1 | 1 | 0 |
| oscuro | September 29, 2017 | 0 | 0 | 0 |
| Oseberg | February 12, 2021 | 1 | 5 | 0 |
| osergios | April 29, 2013 | 0 | 0 | 0 |
 | oskarjacket | April 30, 2024 | 0 | 0 | 1 |
| Osmanvh123 | April 4, 2025 | 0 | 0 | 0 |
| osnheokteo | November 28, 2020 | 1 | 1 | 0 |
| osrsgold4 | September 20, 2015 | 0 | 0 | 0 |
| osu3131 | March 8, 2014 | 1 | 1 | 0 |
| oswaldwark | March 16, 2015 | 0 | 1 | 0 |
| osyrah | August 12, 2016 | 0 | 0 | 0 |
| oszuogb7766 | June 20, 2025 | 1 | 1 | 0 |
 | otaber15 | December 5, 2016 | 0 | 0 | 0 |
| otakjitu | July 11, 2024 | 0 | 0 | 1 |
| otakuboosser | January 4, 2020 | 0 | 0 | 0 |
| Otanna | October 28, 2019 | 0 | 0 | 0 |
| otbspill | March 27, 2015 | 1 | 2 | 0 |
| othercasinoguy | January 21, 2013 | 1 | 1 | 0 |
| Otherguylb | October 16, 2015 | 1 | 1 | 0 |
| OtisMagotis | December 17, 2013 | 0 | 5 | 0 |
| otto | January 11, 2010 | 0 | 0 | 0 |
