I have noticed questions with long MathJax expression in the title get "jumbled up" when I look at the activity tab of some user - in the part listing the most recent questions and answers. (Maybe there are also some other factors in play.)
For example, you can look at the activity tab of the asker (or one of the answerers) of the question: Find the tangent and normal lines to the curve $\gamma(t)=(2\cos(t)-\cos(2t), 2\sin(t)-\sin(2t))$ at $t=\frac{\pi}{4}$ When I check profile of one of the answerers, I see this:
Xander Henderson noticed that the way the title is displayed changes a bit after CMD+click (Ctrl+Right click).
I do not expect this to be browser-dependent, but I'll include the information that I am using Google Chrome (Version 76.0.3809.132).
I have seen that there is an older bug report related to MathJax in user profiles: MathJax rendering issue while looking at someone's profile. However, that post concerns another part of the profile page (another tab).
I will add that I did not intend to single out this specific user/specific post. It simply happened to be the place where I noticed this bug.