I am not aware of any physical mechanism that would lead to such limit for total feedback. (judithcurry.com)
The algorithm then adds «weight» (credibility) depending on various factors: rating frequency, total submissions, low value versus high value transactions, total feedback on a given product and other parameters. (sciencedaily.com)
It is a strong positive total feedback because even at effectively 2 C per doubling we are not keeping up with the forcing, and with no positive feedback, we would be nearer 1 C per doubling. (judithcurry.com)