you know, I spoke with a company not too long ago and they gave me an offer that was 30% lower than what I currently make. The gap was entirely due to not accounting for public company RSU grants (that I had already mentioned)

In hindsight I wouldn't be surprised if their department used this tool to check my current cash income and automatically generated an offer. I wouldn't trust this data for much, and I can almost guarantee that someone in HR/Finance thinks their clever for using it.