Question URL does not include non-alphanumeric characters

I noticed in ++ doesn't show up in Question Title [fixed], the "++" now does appear in the question title, but not in the SEO-friendly URL:

I know I'm opening a huge can of worms here, but could it be feasible to include transliterations of non-alphanumeric characters in question URLs to make it easier to understand the question from its URL?

For example, the above URL could be transliterated to:

todofixthis's avatar
asked 2012-05-04 11:58:45 -0500
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