Different areas on a StackExchange websites are too sensitive to mouse-hover. They show some popups or other which is very annoying. Mouse pointer on tag shows a popup, Mouse pointer on the question shows a tooltip. Any given page is filled with tags & questions. It becomes annoying when scrolling the page with the mouse wheel or middle-button automatic scrolling. It becomes hard to decide where to rest the mouse pointer so that no popup windows are shown.
Please improve on this. Reduce the frequency of popups by tweaking the UI.