There is also a usability issue you need to take into account: Users may visit your website, find an article on the front page and then return later to find it’s no longer there. So they have to either browse through their history, which nowadays it huge even for the past day or search your website but my bet is they will repeatedly hit the refresh button.
Having a lot of content is not a reason not to have a clear navigation structure. Are you larger than TripAdvisor.com? You may have an emotional attachment to all your documented travels but people won’t coming to your website curious were you’ve been the past year, they’ll be coming searching for precise topics like “What is there to do Moscow during the night?” or “What is there to see around Athens?”. Please correct me if I’m wrong.