I've never seen the Bitcoin Foundation bother with any particular crime or scam.

Generally their approach seems to be one of supporting longer term efforts to track bitcoins for the purposes of forming various kinds of lists and mapping individual users to addresses which is one place where Bitcoin 'falls short' of traditional monetary instruments.

If successful, these efforts would likely be fairly effective at halting scam operations such as TF's.

It is fairly appropriate, if maddening, that the BF takes a long term view of 'crime fighting' and ignores specific events.  But I disagree strongly with their apparent direction of choice for guiding ecosystem evolution.