It’s fine if you disagree with the premise of the question. But it’s also fine to ask the question, since presumably the asker wants to know the feature would get enough usage to justify its addition to the specification, and an easy way to show it gets usage is by showing some well-known sites would use it.
But what is not fine is trying to exclude people from the conversation and silence them just because you have a disagreement.
The blink tag was used by well-known website and it's universally recognized as a bad decision.