There was a time before "achievements" or badges and NARCISSISM.MD files on your profile page.
The UI has clearly regressed in terms of performance and responsiveness over the years, when GitHub insisted on making the code viewer a pseudo-IDE. There was even an article making this observation here on HN just last week [0].
Do you seriously feel that GitHub of 2025 has had less outages and more stability than GitHub of 2015?