I am a very, very happy user of Joplin! I use it all the time to organize mostly code snippets and work instructions for my projects. So if nothing happens with these, no hard feelings! Still I keep stepping on those same little rocks in my shoe and I thought I'd write them down here:
1 Copying a line of inline code shouldn't copy its surrounding formatting code. I you select the line of code without being super precise, you'll get on your clipboard something like:
'npm i ...'
  ;
2 There used to be a markdown editor. Now i can toggle editors but I have no idea what it's for. There is no markdown anymore to be edited.
3 There is no warning when dragging a note to another parent. This can happen very easily without even noticing it. Just a popup with the message: "Do you want to copy A to B?" with Ok and Cancel button would save a lot of head-scratching 'where the hell is my note?!'
4 Clearly marked "Search all" button and show search scope when using it.
5 There is no File, Open option. I actually don't really know where my notebook is stored. Could also just be an Info option under Notebook in the menu that shows the path. I don't couldn't find the path in the menu options anywhere.
6 I always reload a note to see that it recognized and converted links. This should just happen when the link is pasted, or space or return key is hit.
7 Language selector dropdown when adding code blocks. It does work well already but I tend to use the same languages so it would be nice to pre select my common ones with an option for 'other' to specify another language.