Had that happen at a large multinational. They locked the "All User" distribution list after that
Person sent a "happiness/warm fuzzy" 4Mb powerpoint to everyone. People hit reply all (with attachment) saying "take me of the distribution list". Others hopped onto the reply-all with attachments saying "me too". Then the intelligent ones hopped on top of those threads and did reply-all with attachments saying there is not distribution list. Followed by other experts saying they shouldn't reply all (and this did this by reply-all).
A few lessons learned. I think IT took everyone's name down that replied-all and had words with them. Not sure what happened with the originator of it all