Does it Matter if Paul Didn't Write the Pastoral Epistles?

Yesterday, I read a short blog post asking the question of whether or not Paul actually wrote the Pastoral Epistles (1 & 2 Timothy and Titus) and if it matters. A large number of New Testament scholars, including I.H. Marshall, reject Pauline authorship of these books (an argument that's really only emerged in the last 200 years) for a variety of reasons, primarily due to differences in style, vocabulary, ecclesiology and theology (although these last two in particular are overstated).

But a b...