I've noticed a couple of issues involving the honourifics.
Both Lightyear and Lightsecond honourifics are automaticly awarded if you happen to have an old savegame where you completed the entire game. When the game cannot tell how long it took you to complete a level, it sets your time to 00:00:00:00, instead of 99:99:99:99, so now the game think I finished all missions in 0 seconds.
The same problem happens with Safety and Pacifism. When the game can't tell how many tree died or how many tree you killed when you import an old savegame, the game set the number to 0 instead of 1, so once again, I got both honourifics the moment I launched the game after patching it.
Megalopolis and Megatraveler seems to be awarded only the next time you launch the game after achieving them.
Regarding Gardener, it's unclear if you must have 10 planted flowers or 10 orbiting flowers on the same asteroid. In the Fertility skirmish level, I had easily 30 flowers around the same asteroid and I didn't get the honourific.