A Murky story?

Within the past couple of days, there has been a lot of talk over Jeff Simmermon's blog post about the denial of his iced-espresso request at Murky Coffee in Arlington, and the subsequent response from Murky.
Apparently coffee shops don't like to serve espresso with ice, because patrons tend to order these with the intention of filling the rest of the cup with the free milk and creamer available, creating a cheap "ghetto latte." Customer saves some cash through this loophole, but store loses a bit of profit on the drink and has to refill the pitchers of milk/creamer more often. Murky Coffee has an expressed policy against doing so, and the owner states that it somehow destroys the taste when espresso is added directly to ice.
At the reinforcement of this policy and the refusal to serve Simmermon his drink in the way he wished to have it, he posted a response on his blog that starts off stating, "The only way I'm ever coming back to Murky Coffee in Arlington is if I'm carrying matches and a can of kerosene." But honestly, does that justify telling someone on the store website, "If you ever show your face at my shop, I'll punch you in your dick"? Bad attitudes all around, but it's hard to deny that Murky knows their coffee.