Could Reddit become profitable if it used Craigslist's business model?

- Charging for certain types of posts, such as job/gig postings, apartment listings, car listings, etc while allowing every other type of post for free

- Keeping employee headcount low (Craiglist reportedly only has 50 employees, but I'm unsure how up to date that stat is)

- Avoiding significant development/infrastructure cost by keeping the UI/UX essentially unchanged

On top of this, I assume Reddit became a lot more expensive to run when it started hosting images and videos itself. Could Reddit have reached its current state of growth (for better or worse) if it had continued to rely on third party media hosts?