Question URL does not include non-alphanumeric characters

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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:

http://askbot.org/en/question/2626/doesnt-show-up-in-question-title-fixed

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:

http://askbot.org/en/question/2626/plus-plus-doesnt-show-up-in-question-title-fixed