I don't mean to, I wasn't exactly looking at a comprehensive list of steam features when I wrote that. I'm sure I missed several of steam's very good features from what I listed.

My main point was, and still is, that the core thing that made steam stand out, has more or less stayed the same throughout its existence. You log in, buy, download, and launch games right from one really easy to use program, it manages all the particulars about product keys and saves, etc. So you can focus on playing the game rather than trying to get the game running.

There's a ton of other really good features that steam and valve in general have introduced, and I'm not trying to diminish the impact of those things.

While other games stores are pulling crap like exclusives to their platform, and requiring dumb shit like invasive spyware "anti-cheating" rootkits, steam has kept the basic formula the same, and doesn't restrict any major publisher from deploying something on their platform. Other developers will still delay making their games available on steam for one reason or another, but steam has been fairly neutral in what's published.

I am aware of some exceptions, so I'm not going to say it's entirely universal that anyone can publish anything to steam, but it's fairly rare that steam is preventing a game from being available on the platform.

That core purpose of steam has always been good. All the other stuff is almost always also good, but the core purpose of having steam installed is the same, or better then, when steam was first released.