Any text in a language besides English will simply be deleted on the assumption that it is spam.
All images must be relevent to something on Devpit. If they're relevent to a user page, they must be named like this: "User_Bilbo,Foobar.png" to indicate why it's here. It's okay to have images and text that are outside the scope of Devpit on user pages, but nowhere else. If an image isn't linked to by a page on Devpit, it's fair game for deletion. Linking to images from another site is discouraged, and may be forbidden in the future. Offloading another site's bandwidth by storing its images on Devpit is absolutely unacceptable.