First of all, this is not a 'useless thread' its mostly used in Blackshot Memory Hacks.
It is used for hex editing and stuffs like that. GS to BP hacks are all Memory Hacks using HxD.
Secondly, the part where the threadstarter stated that this is specially for Blackshot. NO. This is not for Blackshot only. this is a universal tool. Almost every game hacks requires this to find some addresses and offsets.