What I personally don't understand is that if DesignModo did actually copy assets from LayerVault, why doesn't LV name said assets and possibly include screensh

What I personally don't understand is that if DesignModo did actually copy assets from LayerVault, why doesn't LV name said assets and possibly include screenshots or whatever in the DMCA claim? Or make a post about it. Or really, anything that would include the specific information so that people wouldn't be left guessing. As evident by the reactions, not being specific here only serves to make LV's claims seem unsubstantial. I'm personally rather doubtful about their validity for the same reason as well. Also, I think it's pretty ridiculous that a DMCA takedown can even be "valid" without specifying what exactly was infringed - "I am the exclusive rights holder for the artwork contained within Flat UI, Free Web User Interface Kit" isn't exactly saying much.