| 2021-08-14 08:19:57 | menace | Added credit for Mahlzahn on HSC-Tracker V1.5: Other (beta test) |
| 2021-03-02 21:53:53 | exocet | Added credit for Mahlzahn on Starwarz: Graphics |
| 2019-10-13 07:38:11 | sensenstahl | Added credit for Mahlzahn on Virtual Dream BBS (3): Graphics |
| 2019-05-14 12:44:23 | exocet | Added credit for Mahlzahn on Urgent: Graphics |
| 2019-03-07 14:20:30 | exocet | Added credit for Mahlzahn on X-Mas'92: Graphics |
| 2019-03-07 14:18:57 | exocet | Added Mahlzahn as a member of Warlock |
| 2018-03-07 18:30:19 | sensenstahl | Added Mahlzahn as a member of Pen Art |
| 2016-09-21 18:36:59 | sensenstahl | Added credit for Mahlzahn on Synthetic Zone BBS: Graphics |
| 2013-04-06 12:53:27 | dipswitch | Added Mahlzahn as a member of Pentagon |
| 2013-04-06 12:53:18 | dipswitch | Edited nick 'Mahlzahn': changed aliases to 'Mahlzahnx' |
| 2013-04-06 12:49:23 | dipswitch | Added credit for Mahlzahn on Pain 06/94: Other (Interviewed) |
| 2013-04-06 11:57:31 | dipswitch | Added Mahlzahn as a member of Electronic Rats |