Two possibilities come to mind. Either the arena rankings are being manipulated (as you seem to allege,) or there are honest queries that are fundamentally unli

Two possibilities come to mind. Either the arena rankings are being manipulated (as you seem to allege,) or there are honest queries that are fundamentally unlike your own that are tilting results away from where you'd expect. Either way, to be truly constructive, you could point to an alternative, or to a way to improve the current alternative. For example, by improving manipulation detection, or by differentiating rankings by query category.