I share the same opinion.
Actually I think I've gotten the habit by seeing your snippets, hehe.
Imo it is a lot cleaner and provides more readability without using brackets.
mIRC Script is mIRC Script, it's not java, C++, PHP, whatever. I can understand how programmers feel mIRC should follow the standard of those other languages. Though I think most scripters aren't real programmers (in comparison), and those who are, will adapt easily to using brackets in those other languages.
I can't imagine mIRC changing now regarding the use of brackets. The way I see it, everyone creates his own style of scripting. Some are going to prefer things one way, others the other way. And since our current way works well if used accordingly, there should be no need to change it.
Greets