digressive

adj

1. Marked by digression; rambling
2. Being a digression; off-topic

   “I continue to be amused and amazed by the astonishing twaddle that's continually written about the so-called Lavendar ^([sic]) or Violet Quill Club. The latest example of this is an unmotivated, digressive swipe at the Violet Quill (VQ) in T.R. Witomiski's reply letter to various critics in GCN.”