There is also a reason why the official mIRC website contains a forum called "Feature Suggestions". Whether it is a good idea or not alot of people are attacked for posting suggestions here, and I am not saying you did it, just saying that it happens. To me, this is counter-productive.
Saying that something can be scripted is not a satisfactory reason as to why anything can't or shouldn't be added to mIRC, it's more of a cop out. Most of mIRC's standard features were once things that required scripting for, both small and large.