His name is The DonaldDucc. I saw him vandalise more than one page.
Because this wiki is dead, sorry.
@AnneMarcySasha, you are an administrator and you can delete fake and off-topic pages. Not only that but you can also block The DonaldDucc for counterproductive editing.
"New GIF"
- Donald Ducc the Vandaliser
What do you think?