I don't see how OOC planning in and of itself is bad. So long as you aren't trying to leave out other players IC, then it can really only help, as there is only so much you can say IC towards planning something before people stop the thing dead in its tracks before you even start. Also, it seems that you still haven't learned from the various My Guy Syndrome talks.
People too often use a single line of logic for their characters, meaning if someone else does "blank", then said character will always do "blank", making characters unable to be flexible according to what the player wants to do. This isn't a game where playing a character a certain way all the time is the right way to play them.
Oh trust me, my chars have gone through enough changes just to keep the game fun, don't get me started on the My Guy Syndrome. This doesn't however take away from everything I've said. I prefer to get things done IC as much as possible, that is how I see it.
