@deech regarding the example you sent. Nim has nothing like Visual Studio or Intellij, so people arriving here who previously worked with tools like this (which included myself) at first loose quite some comfort (while other people who never bothered with autocompletion and co don't have this problem). There's an argument to be made for how nim makes certain IDE features uncessary, like automatic boilerplate generation (you see this a lot in the Java space).
Nimsuggest works good enough for me and with C++ I mostly use gdb for stack traces (which you get in Nim out of the box), but I would argue for many people this can be a big weakness of Nim preventing them from even trying it, as not everyone can be won over with a language with better ergonomics over a language with lesser ergonomics, but a rich and polished toolset which jump in this place.