Oh - and what they are doing with the data that passes through their cloud doesn't matter, justified spying is still spying and if they don't have the consent to look at the data from me, the user, it is spyware.
It's just like with phones, if I don't consent to have my conversation specifically listened to, it is illegal wire tapping if a third party listens. Both parties have to be aware that the conversation is being monitored.
If I am interacting with a blog, there is an expectation that a third party is not listening in on the interaction.
Now what is publicly posted is fair game, but connecting it with my e-mail address which is presumed to be private (especially since the blog reply form says it is not public) is a violation of my privacy even if their intentions are noble.