http://www.socialmediatoday.com/SMC/103334 have the story in it's full glory from SMT's website.
Quite what they (or their agency) thought they were doing is really anyone's guess. It's just one step short of trying to embed Google-friendly keywords in the HTML code on your site and hope that it comes up in a search....
And to just then delete your tweets and hope they get swept under the marketing rug isn't really quite good enough. Particularly when people have been so kind as to screenshot them.
I think my biggest concern on this whole story is the rather cavalier way that Habitat has treated a social media platform, and for a consumer facing brand these days that's a fairly major issue.