It's no wonder that applications don't work. I can confirm this, but I just quit wasting time on them, went via contacts network.
What surprised me is that the OP had no reaction for personal messages.
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What surprised me is that the OP had no reaction for personal messages.
Did you mean something else, as in LI itself is fruitless and to reach out directly to past colleagues?
Anyone I once had the personal contact info of - which could now be stale - is also a contact on LI. It just seems like a less weird venue to hit up someone you haven't spoken to since you last worked some position. That's also been largely the case when old coworkers reach out to me.
The key thing is he did hit up what could be defined as his network and got nothing.