@Darth:
Also, the trouble here is that Doflamingo has the counter to Admirals, specificaly his connections. Why would he show fear if he knows that he is still a Shichibukai and as such beyond their reach?
Kuzan isn't an admiral anymore. When Kuzan tried to stop DD from killing Smoker, all he did was smile and he continued trying to do it without a care in the world. Doflamingo knew how strong Kuzan was, that he had killing intent, and about his previous rank yet he wasn't even a little bit fightened. Fujitora stated to DD that he would kill him. Doflamingo not fightened yet again, attacks Fujitora. Don't use him being a Shichibukai as an excuse.
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@Darth:
Name them then.
Kuzan fought on equal terms with Jozu, a Yonko subordinate. Marco, another Yonko subordinate, overpowered Kizaru. Rayleigh, yet another subordinate, fought on equal terms with Kizaru and still implied that he could take on him and Kuma if he were in his prime. Marco fought all of the admirals equally. Kizaru and Kuzan had to land sneak attacks to defeat Marco and Jozu. Whitebeard pretty much fought and outclassed all 3 admirals. Kizaru was stopped by Beckman, a Yonko subordinate. I still have a few more.
And did you just treat Kizaru's behavior as serious? Really?
why assume he isn't? Kizaru isn't some kind of trickster like you're implying.