Your comments

Go to the job list on the second floor, it is the person in dark green

Can you be a bit more specific about what you mean?

Issue is mainly that gifs are often huge and with the small chat size, this could easily make it so people are not easily seen in chat.

I don't see how this would be useful, because people can actively choose to grade homework themselves? Why does there need to be this function?

I believe riddles are already ignoring cases, but anagrams makes sense why it is case sensitive, as you see the letters that you need to use.

It is pretty easy for the teacher to find out who, by knowing the week and year of the asssignment.

I agree that the feature is unnecessary 

Wow, I never thought people would do this, I didn't event think of it as a possibility