"Allow me to shed some light on the matter for you: The Stealth feat is just that: a feat. As such it is subject to possible detection."
You seem to have misunderstood me. I only mentioned the feat, because it is an in-game represantion of Kreia's ability to hide herself, and as such shows that the Jedi Master scenes (or, rather, the lack of such) were not an "oversight".
Of course, being what it is, an in-game mechanic, it was also suspectible to game balance.
"I, and several other players of this game with me, do not necessarily find her invisibility to kick-ass Jedi Masters implausible because of the setting in which the story is told, but rather because of the general notion of story credibility it conveys."
Pardon me, but while I've seen you say it is bad writing to do so several times, I've yet to see you explain why it is bad writing. So, enlighten me.
"Verily, do lead by example."
No, I'm the one who shows how deep the whole you're digging is going to be.