Thanks for the feedback!
I don't like how the instant skills feel right now. It just feels unnatural to be walking around with a weapon on your back and then at the press of a button you fire instantly at any direction. It's something I'm working on with the skill/casting system.
>arrows speeding up
Yeah, projectiles are a bit broken at the moment. I should fix them after I finish the skill/casting stuff.
>holding down button to repeat cast
That could be an option. I know tapping the 1 key feels kinda silly right now.
>potion throwing
It'd be cool to see your take on it. I've always been a fan of games that allow you to throw items.
>damage indicators piling up
Good point. I'll think of something to improve visual clarity, or maybe just a simple distance change or fading the numbers out faster.
>drag and drop
It's not as responsive as I want it to be right now. In addition to what you said, the drag icon doesn't show up until your mouse leaves the item box. Which means if you start the drag from the middle of the box, you don't get visual feedback until your mouse clears the box.