If you're trying to say that he could have avoided people posting too off-topic from his theory by titling his thread better, then no, that shouldn't be how it works. If you're gonna base your post off of the title and not the theory/content of the post itself, then you shouldn't be posting tbh.
I wouldn't be surprised if one of the pre-skip Admirals was given the position because Garp denied it first. Wasn't it mentioned or something that Kuzan owed Garp or felt indebted to him? Could be because Garp denied the position of Admiral once upon a time, so it was given to Kuzan.
I reckon in order:
Zephyr out -> Sakazuki in
Kong up -> Borsalino in
Sengoku up -> Kuzan in
It makes sense, afterall, this directly reflects their age and therefore probable development as combatants, but also we can see resemblances in the Admirals and their replacements
Zephyr and Akainu are absolutist and hardline Marines
Kong and Ki (from Kizaru) mean Monkey
Sengoku liked Kuzan (as seen via his recommendation), similar types of justice
Fujitora is also similar to Kuzan, which means Ryokugyu is probably a hardcore 'OMFG Pirates must die' kind of guy
Smoker is similar to Borsalino in the sense that they act out of own interest, so his replacement is logical, and then Smokers promotion leads to Coby's promotion. As Shiroryuu's replacement, Orekani also rivals Luffy - this is their relation
It all works out!