One reason people hate these elements is that they were overused.
However, with that over use, people were giving HTML a go. For someone new to writing HTML, it was very rewarding to be able to use <blink> or <marquee>. These were the gateway drugs of the HTML world, and, anyone that used these elements would eventually learn not to, or maybe not, if it was their mySpace page.
It is easy to hate on the <blink> and <marquee> elements, much like how every snobbish graphic designer can chortle about stupid people using Comic Sans, however, all of these no-no's had great utility in giving people confidence to give things a go.
However, with that over use, people were giving HTML a go. For someone new to writing HTML, it was very rewarding to be able to use <blink> or <marquee>. These were the gateway drugs of the HTML world, and, anyone that used these elements would eventually learn not to, or maybe not, if it was their mySpace page.
It is easy to hate on the <blink> and <marquee> elements, much like how every snobbish graphic designer can chortle about stupid people using Comic Sans, however, all of these no-no's had great utility in giving people confidence to give things a go.