When we get email from this site for forum notifications, they are in Text format. I'm requesting the option to get HTML emails. The reason is that the Text loses context when someone quotes text before their own comments. So in email it looks like the same person wrote everything, but when we visit the site we see the block quote and then the new text. This is all completely understandable, and usually I recognize the blockquoted text even without the visual queue. But HTML would help … or perhaps some text equivalents to provide the same sort of queues, like ">" to prefix a quote.