As cake said, most of them exists but at the same time, some of it doesn’t make sense at all. /ban-ipall doesn’t seem like a good idea after all. This could get the Owner banned too if he/she is in the server as well. I hope this could clear your doubt…
This plugin is not required when you can simply use the permissions plugin to do the exact same thing (Why should we waste time writing a plugin to do something that already exists in leet instead of fixing bugs?) Suggestion denied.
This could possibly be done but would lead to quite a few compatibility issues, Mainly with blocks (Mostly with users playing on servers but complaining they don’t have blocks) not to mention having to specifically update this plugin every time MCPE or pocket mine updates. Too much work and would cause issues, Suggestion denied.
No need for this to be in suggestions, PM Admins links to a plugin if you want it tested. As for the spoon of Pocketmine, There is no reason to use his spoon when its just copy and pasted updates. Locked.