Who disagrees with me? Third issue

I've just sent to subscribers the third issue of Who disagrees with me?, the newsletter providing a weekly article guaranteed to challenge the assumptions of your preferred programming language. There are still 5 different editions - PHP, Ruby, C/C++, Java and JavaScript.
Last week I got a feedback on Google+ about subscribing to multiple Preferred technologies. It would definitely be handy, but I can't change the setting now without losing the data from already subscribing people. It's something to keep in mind in case this becomes something more than a newsletter.
Who disagrees with me subscription