could it be:
jason was doing some programming/coding stuff (either having to do with the old/new chat or reconfiguring some weird settings associate producer mike had arranged) but ran into some issue involving n's and u's so he came to the remaining chatters for help? & m's were a viable solution? (i don't know enough about coding to speculate further on n/u/m's), and them everyome had a mice big laugh about the phometical substitutiom?
or maybe the chat itself was substituting letters and the switch was an effort on part of the chatters to rectify this?
oh i don't know. i should be writing a cover letter.
its just a shot in the dark.