Check out this snippet of the bot log:
(myb0t): [18:20] #mynick# (#mychannel) channel
(myb0t): Channel #mychannel, 3 members, mode +tnl 17:
(myb0t): Channel Topic: Welcome.
(myb0t): (n = owner, m = master, o = op, d = deop, b = bot)
(myb0t): NICKNAME HANDLE JOIN IDLE USER@HOST
(myb0t): @myb0t mybot 00:09 B <- it's me!
(myb0t): othrnick * 15:33 aha@.dnu43.somewhere.com
(myb0t): +LennyK LabMouse 15:46 M 45m nem@elsewhere.net
(myb0t): End of channel info.
(mynick): .tcl nick2hand lennyk #mychannel
(myb0t): TCL: LabMouse
(mynick): .adduser othrnick
(myb0t): Added [othrnick]*!aha@*.somewhere.com with no password
(myb0t): [18:20] #mynick# adduser othrnick
(mynick): .tcl nick2hand lennyk #mychannel
(myb0t): TCL: *
(myb0t): [18:21] #mynick# (#mychannel) channel
(myb0t): Channel #mychannel, 3 members, mode +tnl 17:
(myb0t): Channel Topic: Welcome.
(myb0t): (n = owner, m = master, o = op, d = deop, b = bot)
(myb0t): NICKNAME HANDLE JOIN IDLE USER@HOST
(myb0t): @myb0t mybot 00:09 B <- it's me!
(myb0t): othrnick * 15:33 aha@.dnu43.somewhere.com
(myb0t): +LennyK LabMouse 15:46 M 45m nem@elsewhere.net
(myb0t): End of channel info.
(mynick): .tcl nick2hand lennyk #mychannel
(myb0t): TCL: LabMouse
As you can see, above, the nick2hand function fails when adduser is used. Eggdrop flaw maybe? Thanks.