Is there somewhere already extant I can read about the shortcomings of the available tools, or would I need to do some networking with people to find that infor

Is there somewhere already extant I can read about the shortcomings of the available tools, or would I need to do some networking with people to find that information? I've considered making tools of my own for some things, but knowing what would actually be useful to people doing real work would be a good motivator.