topic stars (the current BAT starring format) will be upgraded automatically to BAT stars.
BAT stars will increase priority by +3.
Kudosu stars will increase priority by +2.
User stars will increase priority by +1.
All of the above stars can stack. This means that many users can give you stars (once per user per map), you can trade in many kudosu for kudosu stars (no limit per map), and multiple BAT members can award their stars (once per BAT member per map).
I am thinking a bubble will increase priority by something close to 10, but will not be stackable.
BAT stars will increase priority by +3.
Kudosu stars will increase priority by +2.
User stars will increase priority by +1.
All of the above stars can stack. This means that many users can give you stars (once per user per map), you can trade in many kudosu for kudosu stars (no limit per map), and multiple BAT members can award their stars (once per BAT member per map).
I am thinking a bubble will increase priority by something close to 10, but will not be stackable.