And why was he rushed? Does it ever cross your mind that the series becomes bad, loses its fan base, and forced to rush?
This isn't even bait. It's one thing to like a series that you don't want it to get cancel, then not seeing its flaws and blame it on other factors. Legit every time Toriko is mention on this thread it's always about how it was unjustly cancel because of other factors.
Also, there aren't that many female characters for its female fanbase to related to. Rin is a minor character. So it can't attract that many readers from different genders.
To me, Toriko had 3 big dips in quality, a) very start of the TS & b) the skipping to the 8 kings/neo stuff during the another arc & c) the three area arc skip in one single chapter.
Tbf, what I find almost as annoying as people saying it got axed unjustly is the that Toriko couldn't be more successful since it didn't have many female characters or fanservice (I know you didn't mention fanservice). It's a dumb criticism since it just wouldn't work, it's a manly series, that's one of the foundation of the series. Toriko didn't have a lot of female readers but the lack of female characters shouldn't really be blamed for that.
I would more so blame the lack of development with it's cast. When I compare Takeshi to Toriko, it was surprising to see how developed/fleshed out the cast of characters in Takeshi are such a short time frame (atm there's about 17 chapters translated for Takeshi) which Toriko never really had with it's main cast in most if not all of it's entire serialization! Shimabu did tease the development of the main cast in Toriko during the 3 area skip which made it even more annoying. Also, from what I see on twitter, Takeshi had a pretty big/decent female fanbase size which is understandable since Takeshi had relateable story arcs to both male/females.
Anyway, in short, I would more blame that Toriko never took off as much as people wanted it to since the cast wasn't all that developed and their ambitions were just driven by appetite, not some sort of personal goal/attachment. It may or may not the series more attention from females specifically but it would've gotten the attention from guys who just brushed Toriko off as a series that's not their cup of tea since it never had really serious moments that added to Toriko's characters. For a MANLY series, Midora really only felt like the manly character in the series since he went through so much and his sendoff was amazing. It's a shame that the Toriko main cast never got fleshed out to that extent since it would've helped the series a lot more than just adding female characters.
I remember Toriko's rankings dropped during the cooking festival, aka the arc that got rid of the adventure aspect to focus entirely on the power levels and fights and while it went back afterwards it was already too late.
Just goes to show, a big climactic final battle-type arc doesn't work for everyone.
Nah, it was still in the top 3 a lot and most of the time damn near, not enough to warrant your theory of why it dipped in quality. Also the focus on power levels had happened before that too. I would argue it was the start of the TS, which IMHO, is one of the worst starts. It skipped Toriko's "journey" to finding Komatsu and we got no answers until like the end of the bambina arc. The heracles & bambina arc were good and even the another arc at the start but it dropped again in quality when it just randomly skipped to focusing on the 8 kings/neoacacia/etc. It was interesting content but happened so disruptively that it made the flow of the story convoluted. I'm not sure who to blame, Shimabu or his editor, or both.
Another thing that was more infuriating was the three area skip in one chapter. It was so unlike Shimabu to do this but he was probably rushed due to the reasons mentioned above. Anyway, Shimabu mentioned how hard it was to handle the TS during the end of Toriko so that says a lot. I am glad that Shimabu himself realizes that the TS didn't go well and admitted to it, which means that he could learn from it.