It’s hard to imagine how much work has gone into developing KiCad since then.
I had a look at the board-file of the first product I ever designed using KiCad and the file is dated 18/12/2008. That’s the date when the product was finished, so I probably started using KiCad about six months earlier or so.
It’s incredible what has become of KiCad during these 14 years, and I’m really happy that I started using it and stayed with it all these years.
You might enjoy this Gource visualisation of the development of the KiCad project. This is from 2015 - it will be significantly more explosive since KiCad6.