In fact, more broadly, it's a problem I have often on flarum – but it's maybe because I don't know javascript or php, and that I'm used to over-use CSS for everything. But many times I'm stuck because the element doesn't have a specific class.
For instance, the other day, I wanted to hide the "private discussion" (Byōbu) from the "All discussion" page, and the fact they have no specific class made it impossible. I also wanted to target the "All discussion" page, but same thing, their page have no specific class... Maybe all that would make the forum more heavy (I don't know how it works, really), but this could be a good reflex in the future versions to add specific class to elements when there is anything which differentiate them from the others, even if those class are not directly used in the flarum default version.
