I think Chrome and Firefox has the right idea, with updates every 6 weeks.
Most commercial desktop software, and even web services like Gmail, go on for years on end without an update.
Browsers are always adding crap (like Firefox's nth cosmetic update), they should be stabler too. Once every 6 months or so at worst.
The approach, in my mind, has had mixed success, but has been a net positive overall. The biggest weakness is that it can be hard to maintain large architectural changes on a branch, which means there's still pressure to ship them in some form. (Though ideally with a configuration option to disable them by default.) Most things aren't like that, though, and for changes with a more controlled scope the six week cadence works very well.
Yes, and I'm saying that's too long. I don't like waiting months or years for fixes or new features.
I also stated that this is my personal opinion. Not sure why people are downvoting.
Sublime seems to have a well-defined aim and to be resistant to feature creep. It's doing a good job of meeting that aim, so I'm happy with it only changing as needed to keep up with like, high DPI monitor support or other things that would actually make it unusable.
With ST we see slow but constant development, personally I don't care if the author is not a Twitter addict.