? in blog titles using Dynamic Pages

I build a custom blog using dynamic pages as described in this article. And here it says:

  • Blog titles must not contain the following characters: -, +, (, ), $.
    Including any of these restricted characters in a blog title will result in a broken link to the dynamic page.

Does this apply to question marks as well? When I put a ? in a title, the link is broken. Is there a fix for this? Thanks!