I think that forcing inline display of a given MathJax segment in some contexts but not others is not a great solution because there are a few things which get treated differently in the two contexts, to the extent that I change some markup if I decide to change a block to an inline block.
However, one thing which I noticed in your screenshot is that the first title used block display (and needed a content correction), and someone else noticed the block display too because I found an edit pending approval.
I think it would be reasonable to force inline display on MathJax in titles in all contexts (including the question page).