Rachel is not a Groupon employee. I share of office with her in Chicago. She's a wordpress developer, founder of PluggedIn consulting (http://pluggedinconsulting.com) and a great person.
I would never work for Groupon or anyone else - so I would make a very bad puppet. ;) I didn't even mean to sound like I was endorsing Groupon. Groupon = marketing laziness (IMHO)
OT: I think Google will probably make a major change to Blogger in the next year or two which may fix their identity linking issue. It will be interesting to see where they go.
It's a grouponspiracy all the way down, man.
And frankly, they both rock. :)