There is a finite amount of shared satellite downlink power available for users of a linear transponder. When someone is operating CW and fails to adjust their power appropriately, everyone suffers.
I made this recording today:
https://soundcloud.com/w5pfg/fo-29-20161210-1805z-aa5pk-dl98-qro-cw
Glenn, AA5PK was operating portable from the USA/Mexico border in grid square DL98. Using an Icom IC-910 and Arrow antenna, you could tell he was perfectly readable yet in his voice you could detect very strong CW elsewhere on the satellite passband.
Often there are portable stations running 5 watts with their Arrow antennas. Please, please reduce your CW power. If you are operating CW to overcome hearing deficiencies at your station,please consider making station improvements rather than taking more of the transponder's limited power for yourself.
73 Clayton W5PFG