User blog comment:Rebinreburst/10 commandments of weapons, and why I'm not posting in the forums./@comment-36926079-20190830140027

Qrow is obviously not skilled with his warscythe because if he was, he would have used it against the Grimm that was about to hit Ironwood. The warscythe has more range and a scythe huge chance of friendly fire, so it makes no sense to me that qrow is a master of a weapon that took him three seasons to use once.

Fox's weapons have repeatedly shown to be ineffective. He has the advantage in training, aura control, an actually op semblance, a gadget that tells him the Grimm's weaknesses, yet he can't kill or significantly injure an Ursa of a slightly bigger size without using an aura technique while Jayne could decapitate one of comparable size without training or much control over his aura in similar time. If Fox's weapons were so good he should be able to kill that Ursa much quicker than Jayne because he knows all of the Grimm's weaknesses due to ADA. Likewise, Coco's gun can't shoot through a tree without her semblance.

If a weapon is mechashifting more than Phyrras or Neptune's, then it's forms most likely don't make sense.

Just because a weapon is in RWBY doesn't make it good. Flynt's trumpet is a noticeably bad weapon and is in the show. Therefore, weapon design does matter.