If you place an HTML module on the home page and add the following content (ensure it is approved) "Sample Atlanta Georgia text" and save. Then re-index site content, then search the site for "Atlanta" you will get results. Delete this module, and do a search for "Atlanta" and you will see this was immediately removed from the index.
Do the same steps but ask a question and you will see you get different results. In the Social modules you must first re-index. The task here is to make the main Social modules behave just like the HTML module.
Note: This impacts the following modules:
marked as resolved (issue was fixed via a social ticket)
Tested in 7.3.3 build 115 - clean installation and upgrade
Content is removed as expected in Platform