This is the laugh line from the ADL's general counsel:
In fact, it appears to us that you may have selected a name so similar to our name in an effort to draw upon the good will and national success that people associate with the ANTI-DEFAMATION LEAGUE.
Anyone who knows anything about anarchism (which obviously the writer of the quoted words doesn't) knows that anarchists stand opposed to the statism of the ADL, including the Progress Clause of the U.S. Constitution, and all enabling legislation, both state and federal, as well as court decisions, such as those cited in the ADL's e-mail, that allow this sort of thuggery to stand.
As for the alleged good will and national success of the ADL, that is irrelevant to the AADL's using the designation "Anti-Defamation" in its name, which it has a natural right to do.