The essential part at the end:
“ When reached for comment, Reddit spokesperson Tim Rathschmidt directed me to Reddit's API FAQ page and said the company couldn't comment further because it's in a quiet period and doesn't "comment on confidential business conversations and/or agreements." ”
We can infer that it was not the fountain of money they thought it would become. Hence, all the special exception for leftover third-party apps to not abandon a leaking ship.
More telling is their silence. Who doesn't want to promote and advertise how profitable they are to potential shareholders just before an IPO.