Web 1.0 was not read only.

Most of the popular web sites had dynamic features including forums, guestbooks, automated indexing programs, etc. Programmers used feature rich web tools like Java Applets and Flash to create dynamic pages.

JavaScript and CSS are web 1.0 technology.

The problem we had was that Google preferred read only web sites.

The other big problem was the only way to make money was through ecommerce or advertising.