SirPrimalform: You're partially right here, the old Downloader did use more resources.
I'm not even joking, I found it to be prone to memory leaks and Adobe AIR is slow as treacle in general.
Sachys: this is why i only ever used it a few times and switched to downthemall (which still works with palemoon for anybody missing it) - which turned out to be faster anyway for me.
I used the news that it was being discontinued (i.e. 5 years ago) as the impetus to finally learn how to use GOGrepo.
Tallima: Their little line about "the devs aren't giving us their updates" seems to be progressively proven to be false.
There have been plenty of high profile instances where that was the truth. TinyBuild for example.
amok: Then they should have taken the hint that it was not supported.... if you use a piece of software which is not supported, then you have no one to blame but yourself.
rjbuffchix: I don't think any Downloader user was under a false impression that it was supported. Just that it continued to work, regardless of being unsupported. GOG has yet to come up with a compelling reason to the user as to why the status quo couldn't have continued. And no, "it's old and unsupported" is not a compelling reason.
In that case you were using it with the understanding that it would stop working at some point. If that's the case, why complain when it stops working?
I'm fairly certain that the only reason it kept on working was because they were manually coming up with links for it (hence the late, missing and broken links). I'm guessing the percentage of people still using the downloader dropped below a certain percentage and they've made the call that it's not worth keeping it running.