I can't believe I had to scroll this far to find a well-articulated example of a proper response. It isn't just a few words that needed changing, the original response by Mozilla mas missing the whole point that you bring up in your example: a 20y veteran volunteer is leaving. Within a small community, the action of a single veteran/leader leaving this way will certainly have an effect on the rest of the volunteers, even more so when you consider the cultural aspects of this specific community.