| 2025-09-01 15:08:21 | dipswitch | Added credit for Poseidon on Wave #4: Text (Interviewed) |
| 2022-04-28 19:19:08 | menace | Updated Poseidon's membership of Vortex: set as ex-member |
| 2022-03-12 21:36:29 | menace | Added credit for Poseidon on The Dark Realm BBS (1b): Graphics (modifications in ansi/vga) |
| 2021-07-21 08:00:36 | menace | Added credit for Poseidon on Silent System BBS (7): Code |
| 2021-07-21 07:56:31 | menace | Added Poseidon as a member of The Silencers |
| 2021-07-21 07:54:51 | menace | Set location to Essen, Düsseldorf District, North Rhine-Westphalia, Germany |
| 2021-07-21 07:52:25 | menace | Added Poseidon as staff member of Silent System |
| 2021-07-21 07:42:02 | menace | Added credit for Poseidon on Silent System BBS (3): Code, Graphics |
| 2021-07-21 07:38:29 | menace | Updated Poseidon's credit on Silent System BBS (2): Graphics, Code |
| 2021-07-21 07:37:52 | menace | Added credit for Poseidon on Silent System BBS (8): Code, Graphics |
| 2021-07-21 07:37:08 | menace | Set location to Germany |
| 2021-07-21 07:36:12 | menace | Added Poseidon as a member of 2000 A.D. |
| 2021-07-21 07:36:03 | menace | Added Poseidon as a member of R2 |
| 2021-07-21 07:35:45 | menace | Updated Poseidon as staff member of No Carrier: changed staff member to Poseidon |
| 2021-07-21 07:35:10 | menace | Added Poseidon as a member of Local Courier System |
| 2021-07-21 07:27:03 | menace | Added credit for Poseidon on Silent System BBS (1): Code |
| 2021-02-06 06:25:25 | menace | Added credit for Poseidon on The Manhattan Project BBS (3) [City Tower]: Graphics |
| 2020-01-02 05:13:15 | menace | Added credit for Poseidon on Cloak 'n' Dagger BBS (1): Graphics |
| 2018-09-08 07:05:24 | sensenstahl | Added credit for Poseidon on Silent System BBS (10): Code |
| 2018-09-08 07:00:34 | sensenstahl | Added credit for Poseidon on Silent System BBS (9): Code |
| 2018-08-06 06:07:52 | sensenstahl | Added credit for Poseidon on Silent System BBS (2): Code |
| 2018-05-24 17:07:29 | sensenstahl | Added Poseidon as a member of Just For Phun |
| 2018-02-12 18:46:35 | sensenstahl | Added credit for Poseidon on TZU Loader: Code, Graphics |
| 2018-02-04 12:32:06 | sensenstahl | Added credit for Poseidon on The Software Review: Graphics |
| 2017-07-27 15:57:19 | sensenstahl | Added credit for Poseidon on Silent System BBS: Code |
| 2017-07-27 15:53:47 | sensenstahl | Added credit for Poseidon on Silent System BBS: Code, Graphics |
| 2017-07-27 15:49:38 | sensenstahl | Added credit for Poseidon on Silent System BBS: Code |
| 2017-07-27 15:46:06 | sensenstahl | Added Poseidon as a member of Vortex |
| 2017-07-26 16:43:03 | sensenstahl | Added credit for Poseidon on Sanctuary BBS: Code |
| 2017-07-16 13:06:51 | sensenstahl | Added credit for Poseidon on Echoes In The Well BBS: Graphics |
| 2017-07-16 09:49:42 | sensenstahl | Added credit for Poseidon on The Dark Realm BBS: Other (Ansi/gfx modifications) |
| 2017-07-16 07:01:01 | sensenstahl | Added Poseidon as a member of Mirage |