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.
More telling is their silence. Who doesn't want to promote and advertise how profitable they are to potential shareholders just before an IPO.