Why do you keep messing around with the ability to drag tasks off boards and onto the timetable?

This is just massively frustrating. Every time you change this it completely destroys my work flow. I want the ability to drag tasks off a board onto the schedule and for them to disappear from the board. Without this I have to go through and manually remove them from the board every time - it adds loads of friction to my work. More fundamentally, you just can't go making significant changes to the UX every couple of months. I feel you don't really understand the kind of product you are producing - this is something I used every day at work to support all the other work I'm doing. I don't ever want to think about it. I don't ever want to HAVE to learn anything new. I just want it to work seamlessly in the way that it always have. New features and changes are good, but they need to be implemented gently, to be used and integrated into my work at a time of my choosing. I know I'm not the only person who wants to be able to drag things around and have them actually move place. I've politely requested this feature in the past and been patient, but basically what has happened is that the behaviour keeps changing. This is really not acceptable for a paid product which is such a core feature of my working life.