Stealing intellectual property is a bad thing, but ACS:Law contain the same insane provision that other similar law firms do (from their "Notes on Evidence" page)
8. Use of Our Documentation
Finally please note that the information and documents contained in this letter are the copyright of ACS Law. Any unauthorised use, e.g. posting on websites and fora, will render the persons responsible liable to ACS Law for copyright infringement, in addition to any liability which may be owed to our client for the same. Further action, in addition to that contemplated in this letter, may result.
There are several choice terms that you can use for law firms that are so far up their own arses that they say things like that. But I won't use them here. Didn't Davenport Lyons try the same thing?