What's funny is I got rejected from YC with Guildwork years ago. After flailing around trying to make it work I reflected on why it didn't work, Discord was the result. :)
Ha, interesting. Glad to see you doing so well with Discord, I used to spend a ton of time on the BG forums back in around 2009 or so, and vaguely remember giving some feedback on the very first versions of Guildwork.