If you're running an open setup with light flavour it's fairly easy. There are big consequences for making a mistake, sure, but your role is very clearly defined.
Making a good closed setup is hard though, and a commitment to heavy flavour will also make it harder to mod. I think my hardest game to mod was BYOC because I had to come up with like 60 abilities and track them all
... Wow, I guess I never thought about it, because BYORs have just steadily grown, but my first BYOR, everyone had 1 ability except like 1 or 2 roles, and then... look at them today! I've given a role with 5 abilities once, and it never really seemed like a big deal to me to have all those abilities. The only ones that are a real nuisance are auto abilities, because sometimes I forget they have them when I process actions or vote counts or anything they're effecting. So, I've tried to categorize them by what they effect, and it's a pretty good idea.
I've also got a bunch of ideas for abilities, but you don't have to have them all unique. I even once gave the same exact powers to another player so that they'd get suspicious when they massclaimed. Or you can have abilities that effect the same type of ability. I dunno. I feel like this round of BYOR, I didn't get to come up with a lot of super unique abilities, but I've thought of some, and I'll probably be keeping a list.
My favorite ability still is infinity voting, though.
You guys are sweet. [And I doubt that they're in a spat. Vector is just busy-busy IRL and working. Webadict is also busy-busy IRL and had a recently happy birthday!]
I'm just messing around. Vector
totally cuddles after a game of Mafia.
But seriously, yeah, that. I've been moving, too, so I'm fairly busy during the day recently, and Vector is Vector and therefore typically absorbs all nearby business then wrings it out into the forums and that typically makes a game or so. I'm just hoping she gets less busy so we can make a fun game for everyone to play.