It never should have been considered any violation, but I've seen dozens of websites claim 'difficulties' because of hyperlinks.
Truly, this presupposes that One Person can speak words that are uniquely his, that his sentences contain no words or phrases anyone has ever used in the history of mankind.
That our words are truly unique and "owned" by us and us alone.
Funny. I've never see too many words originate. Supercalifragilistic... etc, is one exception I can think of immediately.
So, to have someone's writings referred to by a hyperlink seems nothing more than "quoting", and I have a feeling few humans in history have learned words that never existed before.