So you get to repeatedly tell me that I'm afraid of other players, or that I don't trust them, when I haven't said a single thing to that effect. But when I start playing amateur psychologist on you all of a sudden it's belittling disparagement? Get that beam out of your eye.
Hmm. Ok, I'll take some responsibility for that.
While I wasn't intentionally being disingenuous or making claims I didn't believe, I maybe reflexively threw some snark in there at the same time. So let me try this again, without using the words "afraid" or "trust":
It seems to me that among those opposed to this mode of roleplaying the underlying concern is that it could be abused by uncooperative players. And I agree that for a certain sort of disruptive player* this might be a Pandora's box, and for those players you're better off more strictly defining the interpretation of some mechanics.
But I encounter such players rarely, and really would rather not play at all than play with unpleasant people. So given that A) The sort of character development I'm describing (if not these particular four examples) appeals to me quite a bit, and B) I don't participate in games where PvP or really any non-consensual inter-PC conflict is allowed, and C) I don't share a concern about where this might go with disruptive players, for me the risk:reward looks appealing.
However, I can see that for those who A) feel this form of roleplaying philosophically conflicts with their interpretation of roleplaying, and/or B) may like a bit of PvP or other PC vs PC conflict, and/or C) place importance on keeping dangerous weapons out of the hands of childish players, it might indeed be seen as a Bad Idea to allow it.
What I don't concede is that I'm changing a "rule" about what the Intelligence score is, or that there's a logical paradox in the Eloelle example, or that I want to dictate what other people's characters do or believe, or that this leads inevitably to nuclear weapons in Faerun.
How's that?
*Actually, I can think of several flavors of disruptive player for whom this might be a problem.