No. Greek Semicolons hold no power here.

error: unknown start of token: \u{37e}
 --> src/main.rs:2:30
  |
2 |     println!("Hello, world!");
  |                              ^
  |
help: Unicode character ';' (Greek Question Mark) looks like ';' (Semicolon), but it is not
  |
2 |     println!("Hello, world!");
  |                              ~

error: could not compile `playground` (bin "playground") due to previous error

That’s a well designed compiler.
- I would rather see it just added to the standard definition as a valid character, so the compilation passes without issues. It would make lives of Greek programmers a little bit easier!
  
  But on a second though, it would probably make the lives of compiler programmers a living hell. Having to deal with two symbols for one thing sounds really annoying :D
Common Rust W

I love that this implies Visual Studio is not worth its salt, because it most certainly isn't.

Depends on the language.

For .net, it's pretty hard to beat.

For anything else, I use vscode. Its a great all-around IDE/editor.
- I prefer Rider over VS but I like VS Code too
Visual Studio is pretty good.
- You should check out Jetbrains Rider. It feels like cheating. Or ReSharper if you can't leave VS completely

Imagine not programming in Vim 💀

nvim + coc.nvim + coc-clangd (or other language LSP implementations) will give you the conveniences of modern IDEs + the power and speed of vim 🙂
- Vim again, showing why the superior text editor.
- Coc.nvim is kinda bloated though. Really wish developers put more effort into their LSP servers instead of just saying “go use vscode lol”.
  
  Then again, native LSP isn’t that bad. I’ve been using it daily for months now, it’s better than most people give it credit for.
Just throwing in Helix here.
- I use Helix and Nvim pretty much concurrently and whenever I have to use vim I feel slower on most basic movements. A fresh set of keybinds is really nice - though simultaneously there are one or two specific actions which are slower or unintuitive in Helix. But overall I love Helix.

Replacing semicolons with Greek question marks? Easy fix.

Terminating identifiers with Greek question marks? Pure evil.

May work. May not. Haven't tested.

You know what does work as a variable name? ಠ_ಠ
- Intellisense likes it so it's legit. I wonder what would happen if something like this reached CR though lol

This would bite me in the ass because I often ignore these kinds of warnings in VSCode (SFDX for VSC is kinda crap, warns you about nonissues, and often doesn't correctly identify the problem).

Confusable characters get a little yellow box which is different from the squiggly underlines most linters and stuff use which at least makes it a bit more recogniseable.

Personally I can't stand having underlines all over my code, so I'll usually just "fix" the non-issue if possible, or otherwise just disable whatever the warning is entirely.
- Ahh the solution is simple, in VS Code add these lines to your general config
  
  "workbench.colorCustomizations": { "editorError.foreground": "#00000000", "editorWarning.foreground": "#00000000", "editorInfo.foreground": "#00000000", },
  
  Then get the error lens extension, it's so much more pleasant. Visual example
Turn off PBKAC and you’ll only get warnings that matter
Maybe have a look into Gremlins Tracker

Python ftw