I've given you Sysop rights, so you can delete/move/rename articles as you see fit. Obviously in such cases the priority is maintaining an article's history, so move/rename is preferable to creating a new article and deleting an incorrectly titled one.
Karuberu has also recently mentioned that in some cases it may well be worth keeping outdated item images for the historical record.
You should have access to .css / .js too, in the case you wanted to do something with mobile appearance.
The Discord channel is up to 197 members, which makes it a good place for discussion and feedback if you need it. The general conversation is pretty much perpetual, but we have a dedicated wiki-editing channel too.