This topic is not a direct suggestion, but more like speculation and opinion of the mentioned things.
Sure some things are suggestions, but it's also worth knowing why it shouldn't be around.
1. Game mechanic of suiciding works, by doing -suicide. However what's strange is you can only do it at day and not night.
Why not have the ability for suicide at night?
After all, you can -suicide on day - get jailed and suicide after being released.
2. Detective can stalk someone to see their target, however you can discover they also target you.
If there's a witch in play, the detective should logically see who visited him. How about providing a name for someone visiting you?
3. If someone starts out as an executioner and gets a target who is a Day 1 rolequitter, why arren't they allowed a second chance by having a new random target?
It's quite unfair for the one being an executioner.
4. If someone takes suicide, night sequence would give a gunshot with a groan. Where do they get all the guns?
I would suggest having them hang themselves instead. Only killing roles may suicide by a witch, but there's no logic behind a citizen taking a gun to shoot themselves which a witch can't force them to.
After all, a vigilante couldn't find his gun night 1 and still kills someone / suicides by a witch.
5. Masons and Mason leaders are very usefull for town. But what if there's a setup that enables a Lone Mason without being promoted to a leader? He's completely useless except immune to cultists but what if, there's no cult?
I think there should be an option for the Lone Mason to become a citizen in exchange for the tie-situation ability. After all, citizen can become a mason unlike any other role. (exception: amnesiac)