For me, one of missing feature in WordPress core is a widget or a function to display recent comments with avatar. Yes there are so many plugins offer this feature but sometimes they just too much. I was in this situation when working on of my client project.
I was decided to re-build all of my old WordPress themes and make it more better and support latest WordPress core. Satu was the first theme I re-build, not just re-build I also redesigned it with a more modern style.
Hello World! I finally decided to start a blog with this old domain name. It was for my portfolio but I had not time to maintenance the site so I took down the site but I keep the domain name.