When is it good UX on an excerpts page to use the title as the link rather than "Read more"?

Many of the blogs and other sites with a front page containing excerpts from articles also include a "Read more" link, or sometimes the text says "Continue reading" or give some other such instruction about where the reader should click if they wish to read the rest of the article.

But is it really so bad to use the title of the excerpt as the link, if it's underlined, or if it changes colour when hovered over, or both?