When trying to bulk select tasks to mark complete, change tags, or delete, I think the little hotspots within each card should be disabled. As you hold down shift and start clicking cards to select them, you sometimes hit one of those hotspots and open the task, timer, etc. Kind of annoying. I guess on a larger level the whole process of bulk selecting could be smoother but at least once you have started a bulk select, the hotspots on each card should be updated.