The resources turned into a cludge – Charles and I compromised on this one because there did not seem to be any sensible technical solutions. One option was rewriting the search module, but I suspected that would simply cause us terrible grief further down the line.
However, stuff should only show up in the Resources page which have the “for use with students?” category ticked. That should immediately eliminate the vast majority of the current files, and all of those profile images. At least I can take that to the developers. Also, we had registered a problem with the developers already, which is that there used to be “contextual URL”, which would take you the post that the file is attached to. It was agreed that that will be fixed as soon as possible.
So not quite what you’re asking for here (and not what I requested originally!), but hopefully an awful lot nearer.