From the video

Video: Top 10 Mistakes in Fantasy Football
you may be in a sleeper draft where RJ Harvey supposedly is a sixth round pick. He may slide to you in the seventh round and you're going ahead and taking him because he looks like a massive value on the board. Whereas obviously if you have a good set of rankings, you should know, hey, he's actually probably closer to an eighth round pick
Mentioned at 14:26 – 14:44Captured by STACKED 9 hr after posting

STACKED’s take

Positive signalValue

RJ Harvey is closer to an eighth-round pick than his ADP

The source warns against blindly following platform ADP, noting that while RJ Harvey might appear as a sixth-round value on Sleeper, he is actually closer to an eighth-round pick based on accurate personal rankings.

RJ Harvey headshotRJ HarveyRB · DENPlayer page — value, ADP, projections, and every insight