What are your feelings about a fighter who quits on the stool?

[Spicoli]

Thread had me thinking.Bobby Czyz is a 4 timer at this,Rewatched his fights with Prince charles Williams and they were identical.He took a huge battering late rounds and corner was urging and telling him to continue on in the 2nd fight....Czyz had to insist he was finished for them to stop it ??Holyfield,Izaquire it was that his eyes & back were pained?