The opposition arguments have been so bad i decided to log in after months to just clear some things up
"but was incapable of shattering old, wood structures into complete nothingness. That's just self-contradictory."
The narrative gave us massive ammounts of direct clear cut information
1- The author compared his Powers to a Black hole across multiple different medias not just the manga, all of them are consistent and have no contradiction, him having infinite gravity but being able to control how much weight it will have is the most consistent thing across the series
2- The author gave us information about its "limits" the character is able to control the darkness to do what he wants, he can make people walk across it unscathed or use them to overwhelm the most powerful attack of a 6-b character.
He CHOOSES what his darkness will do, why did he not destroy the town to nothingness? Because he didn't want to, why didn't he do x? Because he didn't want and nothing about it contradicts what the AUTHOR stated multiple times about his Power
3- he got a pocket dimension in the Blackhole as well, if his intentions is just to trap people and objects in it and yeet it later that won't contradict point 1 and 2 of his Powers
4- "He said he wanted to show Ace what happened to the town he destroyed. He did not state that he could have crushed the town even further"
See point 1, 2 and 3
Blackbeard can CONTROL how much destruction his darkness cause and he can simply suck them in to his pocket dimension to do what he wants, maybe the intention of the author/Blackbeard was to showcase his ability to pocket things and yeet them out but nothing about it contradicts the many many statements supporting his power
Before anyone says its appeal to authority we have seen the extreme Control blackbeard has over his darkness and all of it fits even if we only use information from inside the story
The additional evidence from the author and many databooks just proves that even more