In reply to Alec.

It's interesting with reply to email Danny that I've ended up with a new comment lower down rather than the reply I wanted to send to you. This is one reason why I kind of like notifications without email reply. There's also no editing with reply by email.

I meant to include Replyable's pricing in the post above. Very fair and affordable even for a small site. Again on the reply via email, I don't know if links make it through or what formatting would make it through Replyable's email parser.

PS. WP Tavern's javascript buttons above are very helpful (I almost included a Markdown link instead of an html one) but don't include lists, which I think are very important for structured discussion. Hence my preference for a Markdown solution for comments. Markdown (or Textile in its day) is the only way to handle lists efficiently in plain text and comments.