In the photo below I hold a mysterious substance, I'll let you guess what it is.
Anyway... the image is from the "Fun Stuff" category of our blog which contains a lot of fluffy little posts and not all of them could be characterized as high quality content by a search engine (e.g. just an image or video embedded, low social shares, low depth of content, uniqueness...etc).
Today we decided to noindex the whole category.
Have you had any experience with this or seen any impact in any of the Panda iterations since internal thin content mop-up?
Note that I like these quirky little pages and if it wasn't for Google I would probably decide to keep them as they are.