This might be something more of my personal interpretation, but sometimes i do wonder if anyone who wasn't directly involved with the Kaiser vs Chosen territory war game is aware of Ken being the former Digimon Kaiser, or not.
I mean, many people in the past had this assumption that Ken did not liked to talk about the Kaiser and to think the group (+ older six) would try to avoid the subject to not make Ken feel uncomfortable (i believe it's because of Miyako's line in ep 31, in which she accidentally started babbling about the Evil Ring they found and then apologizes because she "did make him remember of something he didn't want to" or something?)
But then you have MenAS drama CD, where Ken invokes that persona for a few moments in the track 4, and now the 02TB theater bonus audio drama #3, in which the Kaiser is namedropped -- showing that this is not the case and even Ken himself will simply mention it in the ways of "yeah i did bad things in the past and i admit it, but now i'm doing the right things" instead.
Well, my opinion is that not everyone is aware of it. Some people don't know. And some people could've been pretty much like how Iori was and there could be people who would just use it to blackmail Ken as well if they knew it. So i believe the group and Ken himself wouldn't like to let it be public knowledge. And for the digimon, i don't even know if the entire Digital World is aware as well, possibly because the Kaiser reveal in ep 8 and then 21 happened in isolated places, and the brainwash factor of the rings/spirals makes the digimon not remember those stuff? I dunno...
Anyway, what is your thoughts about it? Is the real identity of the Kaiser public knowledge or nah?
Personally, I don't think it ever became public knowledge. The Digital World residents would have only known him as the Digimon Kaiser, and although I'm sure a lot of Digimon could probably recognize him by face or voice or other means, I don't think the name Ichijouji Ken nor his civilian identity would mean anything to them in the first place (because it's only useful in a real-world setting). And on the flip side, the real world residents didn't know anything about the Digimon Kaiser at all, and by the time they would know, it would be long after everything had passed.
I imagine the kids would keep it a secret, if only because nothing good would come out of it being public knowledge. It would just attract unwanted hostility, open old wounds, and give people more reasons to be angry and upset at his presence, which would be a huge nail in his ability to actually help the communities he'd wronged. If some circumstance made it so that his identity would have to be revealed in order to prevent something worse happening, I'm sure Ken would have no problem taking responsibility, but otherwise, I think Daisuke (who's much more pragmatic) would stop him because it wouldn't actually help anything.









