Facebook's original users, college students, have graduated but still use the site, drawing in their peers in the process: the average Facebook user is now over 30 and a member of the workforce.
On the other hand, TMZ is different from the names of other gossip sites, and so maybe it would be hard for a competitor to name their site EMZ without drawing the ire of TMZ.
The data on downsizings I did find at the ex-employee site, so I credit him with drawing my attention to what is publicly available data in the SEC filings.