It would be interesting if some kind of client (javascript)instrumentation - recording hover times, focus times could reveal the WTF results. Crowdsourcing is e

It would be interesting if some kind of client (javascript)instrumentation - recording hover times, focus times could reveal the WTF results. Crowdsourcing is effective for top/most common queries, detecting WTF in the long tail of queries (where they would be more common) might be very expensive.