"on :dialog:QB:init::{
did -b qb 5,6,7,8"
You should remove the 8 or else the "Choose a nick" wont work :)

Also i dont see the point in contacting the other user twice in Standby Mode
.msg $nick Wait a minute, Your request has been sent to $me
/notice $1 Your query request has been sent to $me
only the Notice should suffice.

Finally and ignore counter would be a nice addition.. that said nice simple query blocker :)

A mimic script that will both mimic and reverse mimic any nickname on any designated channel. just copy the code and paste it in the remotes.

Nice but it didn't work.. well it did but it mimic everyone :D
so i looked at the code and did some tidying up and it worked great then.. anyways good work :)