Hi there. Thanks for taking the time to comment.
Even though Isleward is free to play, we do need to cover various costs.
That said, I'm not sure what you mean about 'scrolling down to show you skins'. Could you please tell me how to reproduce this, as this sounds like a bug to me.
EDIT: Perhaps you mean the fact that the website scrolls down if you press down while playing. If that's the case, simply change the game to fullscreen mode, play at https://play.isleward.com, or download the app then you won't have to deal with that at all.