This is one of those cases where something introduced to the game can produce results which were unintended by the developers, when used in a certain way by players. If the unintended result is also deemed undesirable, it should be handled by game mechanics to eliminate it.
I know for a fact there are people doing this deliberately...it can crash dial up users, and lag a lot of people in general, especially those with older computers, which a lot of UO players seem to have.
Parrots were a cute addition...more lag and name spam is not.
-Skylark