Right, the first part of your message refers to “Find People” data, which is bad >50% of the time.
The second part of your message refers to “Enrich Person”, which is the thing I've been talking about this whole time.
Clay uses MixRank to fuel their “live data” enrichment (aka “Enrich Person”). And it's the same source used in a tool-call by Claygent when LinkedIn data is requested.