Simple text box in your profile where you can list user names, and then when the ignore function is working, it operates on the union of your ignore list and the ignore lists of the people you've listed.
A more advanced version of this feature could add named ignore lists. I could then organize my lists into categories, and people could select only the ones they want. For example, rather than ignore everyone that I've ignored, someone could use kjj.scammer to ignore only people on my scammer sublist.
It is nice option. But can another person see your scammer sublist or will that should be implemented too? Sorry, I am not good at this.
~~MZ~~