Bigger WordPress install here: ~14k posts, 20k images in media library (plus different image sizes - cropped & formats).
Images are used - as featured image of multiple posts - inside content (partly linked to media file) in different sizes (like thumbnail, medium, cropped, full...) - there is no way to tell uploader by filename / folder.
I have to replace or remove all media files from one author (over 3k images) but a "replacement" for these would be nice (because a lot of posts would loose featured images and have a lot of broken links inside content.
So how would I do that? How would I "replace" 3k images with a "default image", how would I replace or delete all of these image links in my post content (plus image_300x150.jpg, image_600x200.jpg, ...)
Sorry for my horrible english - but i have NO IDEA what options I have.