Job boards do get a hard time - maybe unfairly so.
If old media was more effective, and putting in a lineage advert didn't result in too many unsuitable applicants who ring in (and you have to answer the phone - how distracting is that!), then the job boards would deserve a hard time. But old media has the same problems so maybe we should lay off the job boards a little and put in place the facility to manage the volume or use old media and add a few more phones!
Because with the right technology you can find good applicants within your inbox.