On the contra side: Nothing of this really felt like it helped me. I found interviewing people absolutely horrible and almost never had a good feeling. People who seemed like they may have been a good fit didn't get offers for one reason or another, some people seemed awesome in the interview and then weren't. Overall I've been happy with the decisions I personally made (not all that the team/higher-ups then made) but even with the best of intentions.. it's hard. But it was a small company so maybe it was already a problem of not looking very interesting to some.
It still amazes me that some people seem to be utterly disinterested in what your company does or how they will work in a team, asking basically zero questions besides "how much money?" and "which language?".