Welcome if you are a new editor! This wikia is community run for the community. If you feel something is wrong, or something can be improved on, do it!
However there are some points to note.
Before editing a page, check the talk page, This is on the top of the page, with a Number and "Talk" next to it. This will be talking about the page, anything you might need to note. There might be a discussion point regarding what you want to post, So check first.
Also, if you are unsure about some point or other, post it up on the talk page when you make an edit. Then you can talk with others on the subject.
Spoilers are mainly a no no on this site, if you are unsure if something is allowed or not you can contact me and ask me.
And finally, accept advice and help, if you havent edited a wiki before, are unsure of the formatting, ask on the forum section. Its a little confusing for new people, but by using the talk pages to ask for help on specific formating or similar you can slowly learn the formatting and markup.