Telika: Neutrals win if they fulfill their own conditions, right ?
Yes, of course, who doesn't?
Telika: Means a game can end with "neutral wins", or with "neutral and town/mafia" win ?
Yes. Or only town/mafia win and neutral losing. ;-)
Telika: Can "neutrals" have town-leaning or scum-leaning agendas ?
Yes but mostly they have their own agenda and can't be ever fully trusted by neither side.
If someone needs to kill some townie or something similar then they certainly have scum-leaning agenda.
Telika: Is it worth speculating what kind of neutral role or faction the setting could allow ?
NO.
Telika: Maybe more importantly, "neutrals" should be hunted like scum by the townies ?
No way.
To hunt neutrals is just scummy thing. Look who have done it last: SPF in previous game when his buddy (flub) was getting too much attention and he tried to bring attention toward neutral-hunting.
It allows scum to go after someone legitimately and appear like they are actually doing something to help town. It also helps to shift attention from mafia, distracts from scumhunting and allows them to stay alive. Plus one more thing I wanted to mention but forgot it before I finished previous sentence.
Every lynch of neutral is not lynch of scum so it's of little help to town. It is mafia wet dream to let town waste it's time on hunting neutrals instead of caring for real threat.
One exception could be serial killer but still mafia should go first. SK is threat to all sides while mafia only to townies.
Telika: I mean, if one of my current suspicions fit the "neutral" possibility, should I vote against it as I would vote against a mafioso ?
Yeah, if you want to admit openly that you are scum. :-p
I am trying to slowly get myself back into game, but it is hard, so please have patience.