If I would be a dick, I'd guess you haven't been in the field long enough to know everything that you don't know?
Even if you're, say, a competent assembly programmer, I'm sure there are plenty of areas you're unfamiliar with. Perhaps cryptography, the details of JIT compilers, or BGP? There's just a lot to know. Or perhaps you're just unusually talented.
I agree. I went through it a year or so back, and it helped me go from knowing very little vimscript, to writing a 200-line plugin, to modifying it to take advantage of vim built-in behavior (like filetypes and <cword>) to be about five lines.
If you're thinking of doing any vim scripting, I'd absolutely recommend it!
I wish browsers had options to display memory and CPU usage per tab, right on the tab. That would end a lot of BS real quick... "Why does this website look so bland, yet uses 20 times the resources of this other, fast, and pretty site?"
There is one way to find out, and one step to get there is to not put up with this nonsense anymore. Driving a car with the handbrakes on to get a pack of cigarettes is not modern, not progress, not sophisticated, and not exactly dignified either.
In my case, irssi is already installed, I have no real issues with it, and if I reviewed every time someone created an alternative to a program I use I'd never get anything done (not that I get anything done now, but one can dream).