Have a question about how the TVTropes wiki works? No one knows this community better than the people in it, so ask away! Ask the Tropers is the page you come to when you have a question burning in your brain and the support pages didn't help.
It's not for everything, though. For a list of all the resources for your questions, click here. You can also go to this Directory thread
for ongoing cleanup projects.
I'd also say including their ranks are potential and, more importantly, unnecessary spoilers, since the students increasing their ranks is a constant plot point.
I'll parrot my reply from here. If it's not an essential information that can't be described with tropes, it's unnecessary.
TroperWall / WikiMagic Cleanup
The Characters page for Welcome to Demon School! Iruma-kun lists all the characters' ranks, as you can see here. I think this kind of information is more fitting for a more conventional wiki since the main role of this website is to document tropes, not putting every character trivias. The characters' bloodline magics are also listed, but they are all represented by a trope so it fits a bit more (the My Hero Academia Characters page does the same thing for the characters' quirks). Do you think the ranks listed at the beginning of ever character's folder should be removed?