Drop new artboard where you want it
In previous versions of AI, you could choose where you wanted to drop a new artboard. Now it just dumps it in the middle of the screen. This is problematic because when you go to drag it to a new location, it often grabs items from existing artboards and drags them along with it. I have no idea why you changed this feature, but it is a daily frustration. And judging from the forums, I'm not the only one that hates it!
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Armon, I feel like it does not behave like this for me.
New artboard now gets dropped next to the active one, using the spacing value defined in Object > Artboards > Rearrange All Artboards dialog (which you can’t access though when you have the only one artboard on canvas, which is a big miss — here is the request to fix that: https://illustrator.uservoice.com/forums/333657/suggestions/43218936)But you say it gets dropped in the middle... Does it do it for you still?
As for the grabbing of objects which happen when you move artboards, it’s the fault of the 'Move/Copy Artwork with Artboard' button, which is located in Control panel, or its alter-ego, the 'Move artwork with Artboard' checkmark in Properties panel.
Both are not sticky are get re-enabled — not on every app launch, but on every app crash (which happens quite a while).