I did the math, and I figured I deleted 417 images from the wiki today. Most of them were pictures of toons or doodle that were no longer used on userpages. One of them was very bad (but I forgot the username when I deleted it, so I hope they were already banned).
But I wanted to let you know that images you upload and don't add to pages (or ones that you remove from pages) may be deleted. I'll try to avoid the ones used in templates and blogs because those appear on this list too, but I can't guarantee it. So if you see a picture that you want to keep there, add it to a page. And if I accidentally removed something that you still wanted to keep, then you'll have to re-upload it. I'm sorry.