I've just witnessed a repeating pattern happen yet again, to a friend of mine this time, so I thought I'd ask for opinions.
Scenario #1: Your site had remained untouched for over a year and received predictable amounts of traffic from Google only to be reduced in half when you make a site improvement(add some articles, improve some pages etc... nothing drastic and no changing urls, not even SEO changes).
Scenario #2: Your site had remained untouched for over a year and it receives a sudden loss of traffic. You improve it by improving existing content and adding new content only to then suffer another traffic loss.
Why does it seem like you cannot touch an older site without incurring a very real risk of losing the traffic your site has been receiving?