I don �t know about your particular worksheet, but generally if a worksheet has pictures on it that are watermarked or somehow marked with a copyright symbol they are removed. This is because you can �t publish these pictures without the written consent of the copyright owner (even if you did find it on Google, Yandex, Yahoo,etc.).
This copyright rule is often broken on sites found via large search engines, but it still doesn �t make it legal. If Victor (site admin/owner) doesn �t take actions to prevent this copyright infringement, he could be held liable, be fined, and the site could be shut down.
To prevent this from happening we have a system in place where-long-time contributors evaluate reported worksheets to determine if they are breaking the rules or not. If they are the worksheet is removed and the creator gets a system-generated email telling them so.
The "moderators" are usually really good about being fair. I suggest you check your worksheet again and remove any images with a watermark and then repost it (if the purpose for removal was an "illegal" image). I also suggest you review the rules of the site where this is all explained in some detail.
I know it is frustrating, but in the end it is better for all of us--otherwise we wouldn �t have this wonderful resource.
Cheers,
Douglas
