No sending out random invites, invites just to kill the individual, or false invites. IE: Someone asking for an allo and getting a compy egg.
You're allowed to adopt what your character can pack/herd with as per their profile.
Nests can be attacked, though be aware that you can be attacked in return without warning. Currently nests are invulnerable, but this still applies.
Those with a carnivorous diets can choose to hunt the individual if they do not have a body; Otherwise, if they run away, let them go. If they return to continue attacking the nest, they can be killed.
Just a reminder of the griefing rule: Do not grief others. Just because something "isn't a rule break" doesn't mean that it should be used in order to repeatedly harass and or grief others. This includes repeatedly breaking or camping people's nests. This is a new mechanic to the game, don't be a jerk and ruin it for people.
If there's a body on a nest, or in the nesting grounds, the carnivore/carnivorous omnivore must be allowed to return to the body so it can be eaten.
Once they've had their fill, personal space must be honored or the carnivore/omnivore risks being threatened and attacked.
Resource nodes cannot be challenged for and can be used by different species. Personal space rules apply.