One turn per action.
This means that you do not type in a action then immediate think of something else cool to do and do it. Just because you may think you aren't abusing the 'One action a turn' rule doesn't mean you can do several actions. This is basically the same rule applied to a different way of looking at it. This isn't a typing contest: ie, who can type the fastest or get the most poses in. It needs to be fair and you need to allow for a reaction/action from the other players. You need to keep lag or slow typing in mind.