| Username | Title | Posts | Registration date |
|---|---|---|---|
| OCG | New member | 1 | 2020-10-07 |
| OddbOd | New member | 2 | 2010-03-23 |
| Oddbrother | Dumper | 47 | 2015-06-30 |
| odelta | Dumper | 3 | 2009-02-13 |
| oezr | Dumper | 30 | 2018-04-07 |
| Ogat | New member | 1 | 2018-09-07 |
| Oiseau | New member | 0 | 2019-08-20 |
| ol | Dumper | 14 | 2010-05-09 |
| olaf2022 | Dumper | 332 | 2021-11-12 |
| olavnordmann | Dumper | 21 | 2011-07-17 |
| Old Boomer | New member | 0 | 2023-10-27 |
| olddonnieg | New member | 0 | 2025-01-02 |
| Olivier | New member | 0 | 2021-08-26 |
| olofolleola4 | Moderator | 64 | 2013-06-03 |
| OmakeArchives | New member | 0 | 2022-01-26 |
| OmarAlJabbar | Dumper | 2 | 2023-04-25 |
| Omega | New member | 1 | 2013-01-15 |
| omegaone | Dumper | 0 | 2006-12-26 |
| OmegaWolf3700 | Dumper | 0 | 2022-09-14 |
| omgponies | New member | 5 | 2012-04-09 |
| OmniouS | Dumper | 92 | 2008-06-04 |
| OMPeaRetro | New member | 0 | 2025-09-02 |
| OneVurfedGwrx | Dumper | 0 | 2007-08-07 |
| onoreo | Dumper | 72 | 2021-08-09 |
| Oondanomala | New member | 0 | 2022-04-10 |
| orbit | New member | 2 | 2020-01-07 |
| Organic | Dumper | 26 | 2007-01-14 |
| Orion666 | New member | 1 | 2018-09-07 |
| orkus | Dumper | 2 | 2022-09-03 |
| osam | Dumper | 2 | 2007-01-04 |
| osbuns | New member | 2 | 2021-01-16 |
| Oswahuer Azevedo Rosa | New member | 0 | 2021-07-07 |
| Ouija | Dumper | 20 | 2010-10-20 |
| Overload | New member | 0 | 2019-09-02 |
| Oxidnation | Dumper | 8 | 2025-02-21 |
| ozzi22 | New member | 1 | 2011-04-28 |
| P@S@f | New member | 5 | 2014-07-31 |
| pablogm123 | Dumper | 1,006 | 2011-05-16 |
| PAccO | New member | 2 | 2009-02-27 |
| Paco | New member | 3 | 2011-03-25 |
| Paiky | New member | 0 | 2020-12-26 |
| painday1 | Dumper | 109 | 2010-05-10 |
| pairo | Dumper | 1 | 2024-10-26 |
| pancakepuppy | New member | 0 | 2019-04-29 |
| Pandor | Dumper | 34 | 2011-09-12 |
| Pantheon Project | Dumper | 2 | 2018-08-19 |
| Pantsi | New member | 0 | 2017-11-30 |
| Papercut | New member | 0 | 2021-04-17 |
| Parotaku | Dumper | 241 | 2019-04-01 |
| ParoXoN | Dumper | 6 | 2018-10-12 |