The link https://community.c9.io/t/what-are-active-workspaces/1334/2?u=bradydowling you posted requires me to log in:
I can read the source post (https://community.c9.io/t/sharing-premium-workspaces-with-free-users/2741/2?u=bradydowling) without logging in, so showing the preview would leak the What-are-Workspaces-topic to me.