Even if you're not paying for mIRC, I think dozens of bug fixes and new features outweighs an extra 2 seconds of "nag" - dont you?
In fact, the nag-effect is one click more, but several seconds less

I can't understand that one is requesting changes on the one hand side, but refusing other changes - they all come along in a bundle of modifications, called "new version"... never will all of them fit ones personal "whish list". Erm, and topic is "toolbar bug"