Not to conflate this thread with the
"poor websites" one, but as a website developer (not designer!) I often find myself having to fight with the designers because they never follow the rules.
"Can you turn this into a button?"
"But it's just a link to another page and it doesn't 'do' anything so it shouldn't be a button"
"People will be more likely to click it if it's a button"
"Can you make this link open in a new tab?"
"It's just a link, if they want it in a new tab then they'll choose Open in New Tab"
"But *I* want it to load in a new tab every time, and my preferences are more important than those of the person who actually has to use the site"
You might be able to tell that I'm paraphrasing a little!