adding comments to ponder

Summary: This is pretty spartan, but it does the job.

Test Plan:
Patch, update storage, add some comment
to your favorite question or answer.

Reviewers: nh, vrana, epriestley

Reviewed By: epriestley

CC: aran, Korvin, starruler, syrneus, me.here, victorzarate7

Maniphest Tasks: T1645

Differential Revision: https://secure.phabricator.com/D3471