If you have specific issues around error messages and tracebacks please feel free to let me know directly or to file issues on Github. We really do care about the legibility of errors and tracebacks and me and my team have put a lot of effort into them in the last few years. But there's always room to do better and I'd love to know where the pain points are.
(The intersection of tidyverse and shiny tracbacks are a known pain point that's hard to resolve. Unfortunately shiny and tidyverse did a bunch of parallel work that took us in slightly different directions and now it's hard to re-align.)
One thing we are missing is a guide to reading traceback for newer users. Often experts can get a good sense of where the problem is, but we've failed to teach newer users how to get the most value from a traceback.
(The intersection of tidyverse and shiny tracbacks are a known pain point that's hard to resolve. Unfortunately shiny and tidyverse did a bunch of parallel work that took us in slightly different directions and now it's hard to re-align.)
One thing we are missing is a guide to reading traceback for newer users. Often experts can get a good sense of where the problem is, but we've failed to teach newer users how to get the most value from a traceback.