Probably added after profiling on that system found that the GC pauses would fit within frame budget, whereas not running it every frame would have a long pause eventually drop frames
Only true for Java runtimes at the time. With modern JVMs with generational GCs, it is detrimental even. Profile it, and only let allocation rate increase to an acceptable level that can be reclaimed easily. Or nowadays one can use a low latency GC as well.
