My observation about 'cheats', on here or on any mir server i've ever played, is that 75% of the 'cheaters' arent actually cheating. Have you ever noticed how sometimes you'll hit hard consistently, yet other times you'll hit ridiculously low for consecutive hits despite not making any changes to your kit? Somtimes you'll have an entire hunt where you ripped through mobs, then the next hunt it'll be the complete opposite.
Likewise i can honestly say there are times when i feel much, much quicker than other times. This is most likely down to environmental factors such as if ive got other stuff open on my pc, if my ping is higher than normal etc. But this, like the above, can be all it takes for people to bring out the old 'youre cheating' card when they get bummed.
Im not saying some arent cheating, im just trying to illustrate that there are random factors involved that make it much harder to actually spot a real cheat.
That being said, i do not understand why people like XINXIN are still ingame, especially as there's definitive video evidence of him using cheats. Cheat monitoring is a full time job and imo there should be a member of staff dedicated to this alone.