I keep it up-to-date with at least my employers because there are enough FAANGs and well-known unicorns on the list that that alone gets me recruiters emails. A

I keep it up-to-date with at least my employers because there are enough FAANGs and well-known unicorns on the list that that alone gets me recruiters emails. A few of the FAANGs have a recruiter check in with me every year. Basically, I interact with it enough so recruiters know I'm out there and desirable.