Hi Hue. The close relationships you have built up in the MK thread are to be commended and if you know each other's characters so well you feel comfortable ascribing to another writer's character what that character thinks and feels, even to the extent you dictate the other character's resulting action, well, that is, again, commendable.
That is different to interacting with another character, or referencing a character, to my thinking - it's all about how much one indulges in the Omnicient Third Person POV, in the end.
As a writer you can describe an interaction without lifting up the POV ( or internalising the POV) to the extent that you're ascribing, thoughts, feelings, motivations and actions to another writer's character. You simply describe the character, offer simple dialog and leave a hook, as it were. Done.
So, in seeing (and reading) the deep trust you all have in working and writing together and how you do write considerably for each other's character, I recognised I don't have such close working relationships - I've not 'been in your fold' as it were - and if another writer were to ascribe to my character what she or he was thinking or feeling without first sounding me out, then yes, I would have an issue with that. So I simply felt the need to describe that, using the guidelines for the forum and, in doing so, it will circumvent confusion later on.
Perhaps in my haste, the copying and pasting of the guidelines may not have been considerate - perhaps I should have worded my request in a more personal fashion. Hopefully this explanation has achieved that.