Dear Mr. Toriyama:
Stop. Just stop. I was pretty excited today when I saw that yet another Q and A had been translated. And even better, it was about my favorite arc, which focuses on my favorite character. Then I read it.
The stuff about Mr. Satan is... not good, but not bad. I like knowing some more about him, but I don't appreciate [Toriyama] having to have everyone know each other. Makes the universe feel tiny. I always assumed Satan had no other relatives anyway, so that last tidbit wasn't a surprise for me.
The part about the Tenkaichi Budokai was a nice little world building factoid. The bits about Vegeta and Krillin were boring but harmless.
The problem comes with the big stuff, the Kaioshin and Buu. First of all, only three questions were asked about Buu, which is kinda disappointing (then again, there's still more Q and A sessions). But more importantly...
Though in the manga Kaiōshin said that Bibidi made him, the truth is that one called “Buu” was not actually created by Bidid, but has existed since time immemorial. He cycled between rampages and long hibernation. During numerous iterations of this cycle, he absorbed the evil elements of mankind, becoming steadily more violent. Bibidi merely knew the means of calling Buu from out of his long slumber. Since the current Buu is a slightly different life-form due to the changes brought about when the evil Buu was expelled, it’s not known whether he’ll still go into long hibernation.
That sentence right there is this Q and A and a lot of Toriyama's more recent involvement in general in a nutshell. "The actual damn manga said this, but what really happened was...". Goku's mission, Old Kai's old enemy, Commander Red's position, Buu's origin... all of it is getting retconned away by poorly thought out BS that did not need to exist.
Why does Toriyama have to retroactively contradict his own manga? How does this in any way improve the story? In fact, contrary to the whole purpose of a Q and A, all this did was create more questions and gut the story. "Remember that clearly spelled out origin for Buu? Yeah that's wrong now. New origin? There is no new origin, he's just a guy that existed". What was wrong with Buu just being a freak accident created by a powerful magical wizard?
And before anyone says "he didn't contradict anything, I mean Kaioshin could've been wrong...". Technically, that's true, but... I'll just quote Gaffer here:
Well, that's exactly what I said in my post. None of these things have to be plot holes if you squint hard enough. But Raditz's initial monologue has been retconned so many times that, if you go back and watch/read it now, rather than being shocking information, it's worthless, because he's apparently wrong about everything! I'm just saying that, the difference up until now, was that at least they'd been changes for the sake of something. With DB Minus, given that it actually damages the story AND is just one more thing to add to the list of things Raditz got wrong, it's a lot harder to justify. It's getting to the point where it's no longer worth expelling the effort to suspend my disbelief. It's not about whether we CAN make the plot holes work because of course we can. It's about whether it's WORTH IT to do so, if what's being told DESERVES it.
The part about Buu not needing energy is nothing new, and the spell Bibidi uses is just... why did we need to know that?
No one can [become a Kaioshin]. Kaiōshin are born as Kaiōshin. There are three of them, and they work in shifts. Though there are two of them on duty now, if one of the Kaiōshin were to die in an accident, then the currently-inactive Kaiōshin would grow in the Kaiōshin Realm like a plant. If there aren’t any accidents, then it’s said their lifespans are about 75,000 years.
This is just a whole big pile of nonsense. It completely contradicts Toriyama's own words from 2008. What's with Kaioshin's age? Isn't a young one said to be 5 million? What's this about there being three of them? There were clearly
five. Maybe he's talking about there being, for example, three West Kaioshins, but if that's the case where have the other two been for the last 5 million years, and why does our East Kaioshin never mention them?
The Kaiōshin (who create planets) and the Gods of Destruction (who destroy them) have never gotten along that well, but once every 1,000 years they go to each other’s realms and hold a coordination meeting. At this time, they got into an argument over some trifling thing, and a certain short-tempered God of Destruction sealed Elder Kaioshin away inside a sword. Naturally, it wouldn’t have been proper for him to destroy the Kaiōshin Realm itself. By the way, that God of Destruction was Beerus
Probably my least favorite part of the whole interview. Old Kai established his old enemy as someone weaker than Majin Buu, so why say it was Beerus, who is stronger than Buu? What is gained out of erasing that information? Most importantly, why does Toriyama keep trying to insert concepts from that shitty movie into EVERYTHING? It rarely if ever makes any sense.
I hope he can provide actually meaningful and interesting information in the next Q and A, but at the moment my stance is pretty much "someone get this man as far away from the franchise as possible".
As for ability unlock to be more desirable.... I like it this explanation, as Old Kai seems to be very vain. 
