I can't speak for anyone else, but the sandbox was a big part of my Game Maker experience. I've got games on my account there that date back to GM5/6 and even one going back to GM2.
Although I understand the need for the changeover, and I HAVE downloaded all of my projects from the site, do you not think it'd be kind to send out some kind of notification to the users from the sandbox, explaining that it is being shut down?
GM: Studio is heading up in the world, and that's all good and well, but does this completely spell the end for any user NOT using studio? (I, myself, am using Studio, but the old GM7-8 games are a big part of the GM experience.)
I broke into the GM community...eight, maybe even nine years ago, and if it had been the way it is now, I would have left around the same time.
Don't get me wrong, I love the updates and all, but the older GM games had a certain....flare to them. Take games like "Crimelife 2/3" and "A Day In The Life Of Bob." Sure, they look like they were made in DOS days, but they are good games.
It's like YoYoGames is trying to cover up it's dark past...with big, flashing "HTML", "iOS", "WINDOWS PHONE" and "MAC OSX" signs. It pains me to see the company that got me into programming destroying the products they created.
Sure, legacy versions aren't as good as GM: Studio, but that's no reason to kill them off this way. They got you to where you are today, and you've just turned around and stabbed them in the back.
And you don't even have the courtesy to send out an email or two saying "grab your old work now before it's destroyed forever."
This does, however look like a nice upgrade for us GM: Studio users, so I'm at war with myself here.