Is it possible to customise the "Ask a Public Question" page to add some text and a link to discourage posting images of or links to images of text?
I often copy-paste a comment like the following on such questions:
[Please don't post images of text](http://meta.unix.stackexchange.com/questions/4086/psa-please-dont-post-images-of-text). Copy and paste the text itself **into your question** and format it as code by selecting it and pressing Ctrl-K or by using the editor's `{}` icon.
This could probably be worded better, but it would be good if the images-of-text problem was pointed out to people before they post.