Here are the users who appear most frequently on trust lists that have been edited at least once:
+-------+-------------------+------------+
| count | member | in_default |
+-------+-------------------+------------+
| 519 | DefaultTrust | 0 |
| 82 | John (John K.) | 1 |
| 82 | theymos | 1 |
| 30 | TradeFortress | 0 |
| 23 | dooglus | 0 |
| 22 | burnside | 0 |
| 21 | CanaryInTheMine | 1 |
| 21 | Gavin Andresen | 0 |
| 20 | Tomatocage | 1 |
| 19 | HostFat | 1 |
| 18 | ThickAsThieves | 0 |
| 17 | sublime5447 | 0 |
| 17 | BadBear | 1 |
| 17 | BCB | 0 |
| 16 | friedcat | 0 |
| 16 | yxt | 0 |
| 15 | Maged | 1 |
| 15 | Chaang Noi (Goat) | 0 |
| 14 | escrow.ms | 1 |
| 13 | casascius | 0 |
| 13 | satoshi | 0 |
| 13 | OgNasty | 1 |
| 12 | Akka | 0 |
| 12 | paci | 0 |
| 12 | sirius | 1 |
| 11 | Projects | 0 |
| 11 | ziomik | 0 |
| 11 | diego1000 | 0 |
| 10 | Ukyo | 0 |
| 10 | Deprived | 0 |
| 10 | phantastisch | 0 |
| 10 | SebastianJu | 0 |
| 10 | MPOE-PR | 0 |
| 9 | Stemby | 0 |
| 9 | Menig | 0 |
| 9 | J.Socal | 0 |
| 9 | Luke-Jr | 0 |
| 9 | bertani | 0 |
| 9 | DeaDTerra | 0 |
| 9 | zefir | 0 |
| 9 | qwk | 0 |
| 9 | tysat | 0 |
| 8 | TheButterZone | 0 |
| 8 | Inaba | 0 |
| 8 | MagicalTux | 0 |
| 8 | Benson Samuel | 0 |
| 8 | ercolinux | 0 |
| 8 | TECSHARE | 0 |
| 7 | Bicknellski | 0 |
| 7 | LoweryCBS | 0 |
+-------+-------------------+------------+