Dropdown menus like category or tag selection don’t block touches outside of the menu space. If a user wants to escape this menu by touching a spot not occupied by the menu the touched element receives the event and triggers a likely unwanted action.
How to reproduce:
- Navigate to the forum overview
- Touch the categories menu button
- Touch an element outside of the menu
I’m not 100% sure if you’d label this as a bug because there are designated ways to exit the menus by either selecting a menu item or touching the menu button.
However, the buttons are often in the upper quarter of the screen which makes the navigation inconvenient on most modern phones. Speaking of that, it can easily happen that there’s almost no free space left like in the screenshot below which also makes navigation more tedious. That’s because the text field is focused and the keyboard pops out. On iOS there’s no way to just hide the keyboard.
