Alter Aeon FAQ (Frequently Asked Questions)

FAQ 21.9 - Addendum - why are 'a', 'an' and 'of' bad in name/insult strings?

Because people will be able to use those words as the name of the item or
mob.  If you have a sword with a name string 'sword of truth', you can do
commands such as 'get sword', 'wield sword', or 'drop truth'.  You can also
do commands like 'get of', 'wield of', or 'drop of', because 'of' is part
of the name string.

The same problem also arises for mobs.