This website is 99% HTML and CSS
It was 1996 when I started making websites. I had barely learned to type and was amazed that we could publish things instantly for the world to see.
Over the years of making websites, there has been an increasing demand for data-driven websites. Websites that change dynamically over time and are responsive on different system displays data that is all cleanly labeled and stored in a database where it can be queried and re-used.
Data-driven websites free up the common person from having to understand code and be completely oblivious to how their interactions give away valuable information. When you go to Facebook the screen is filled with information and ads from Facebook and advertisers suggesting things to you. In the background, they are monitoring what you look at and searching for things that might interest you.
What interests you is not always healthy for you. It is easy to be intrigued by a horrific car crash video, then find yourself watching hundreds of them on YouTube all stitched together an hour long with weird background music.
When I post a long rant on Facebook it is read by two people maybe, then drifts off into nowhere to be found again. Tumblr always seems to be showing my articles to exactly the wrong audience which causes a frenzy of hate that makes Tumblr traffic go wild. Maybe that is just my conspiracy theory.
The point is that you never know what is going on with your data when you submit it, who it will be dished to, and what it will say about you.