I've voted "Yes, I believe that the current rules should be more clearly defined and fleshed out so that all loopholes are closed. Moderators should take a stronger stance on moderating user conduct."
Rules should be laid out clearly, both for the benefit of the moderators so they have a bit more of a handhold on how to moderate without the users being able to say that mod X is powertripping or mod Y abusing his power against certain users, as they can point to the exact rule violated instead of going off a kinda arbitrary "breathing room" ruleset. Of course there has to be flexibility, but most cases should be defined and loopholes closed.
For the users clear rules are preferable since you know when to expect mod involvement and where not, and it keeps said powertripping mods in check. Sooner or later there is ALWAYS one, no matter how nice all the other staff is, on any larger site. Seen it plenty, both as a user and as staff. They often start out as nice, relatable guys and then go nuts sometimes later, and many staffs are then reluctant to show them the door.
About moderating user conduct, I think in most cases things are fine. Being able to ignorelist users takes some pressure off, since you can always throw the trolls who are intentionally treading the fine line between moderation-worthy posts and accepted stuff off into the ignorelist. A few toxic cases I'd like to see acted on with tools like being able to revoke posting rights for a limited amount of time, but those are rare and inbetween.
As for scanlation group drama, I honestly could not care less as long as they keep it to credit pages or comments and keep it out of the actual manga pages. I am not a huge fan of all the "he said - she did" BS in the comments, but I can tolerate or ignore it. Personally I don't give a damn about intergroup and intragroup drama.