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I'm not really sure where to put this, so it goes into my usual hangout.
Several years ago, Apple caused a stir by banning Flash from iOS devices. iDevices access the web a lot, and a lot of the web uses Flash, so this turned some heads. At the time, I thought Apple was just being obnoxious and proprietary, which is standard fare for Apple. (There's your hardware connection and a justification for putting this in the hardware section.)
Two weeks ago, I got a new SSD and did a clean install of Windows. I've only been installing stuff as I need it. The need for a lot of things was very obvious, very quickly: Opera, Chrome, Eclipse, Guild Wars 2, Acrobat Reader, etc. I'm trying LibreOffice Calc as a replacement for the various versions of Excel that I've used for about 20 years. But Flash? I still haven't come across anything that made me say, "I wish I had Flash installed".
That's not to say that I haven't noticed a difference. Quite to the contrary, a lot of things on web sites I visit have been disabled. Sometimes it's just mysteriously disabled. Sometimes it says I'm missing a plug-in. Sometimes it explicitly says that I'm missing Flash, or need a newer version of it.
So what things are disabled? Annoying things. Excessively excitable advertisements. Unwanted videos that auto-play--and not necessarily just advertising. It's not just some annoying things. It's nothing else besides annoying things. Things that I know what they are because I've visited the site a lot, and have long been annoyed by them.
For example, on this very page as I type this, the top banner ad is obviously broken. When I mouse over it, it says, "the plug-in is not supported". I'm not blocking ads, as I get that the site needs revenue; most of the ads on this site still display for me, and that's how I want it. And that's much milder than a lot of stuff that gets blocked on other sites.
And you know what else I don't miss? Constant nagging that Flash wants to be updated. So why exactly do we need Flash, again?