I think the argument is more that this tool by virtue of being easily accessible creates more malicious actors. Similar to how most people wouldn't steal a locked bike, but a larger portion would steal an unlocked one. It isn't that much harder to steal a locked bike vs an unlocked one, but the threshold is just a tiny bit higher so more people will attempt it. Conversely this tool lowers the threshold for stalking, so more people, who otherwise wouldn't, will use it maliciously. That isn't the fault of the tool or its developers, but it is something to be aware of when building any tool. When you release it, it may get abused by people for bad purposes.
I built something related to this for our webapp. Most of the text in the app is in a language specific "key to text" map that is loaded at runtime. I made a bookmarklet that switched the language into a debug mode where the keys mapped to a "<file>:<language-variants>:<Key>". You could switch to this "mode" with a simple keypress. User then highlighted the key they wanted to change, pressed another key-combo and was presented with the different translations and could change them (and switch back to normal mode for a preview). Lastly they could generate a PR with the changes they wanted and a Dev could make sure the strings worked (e.g. validating they had not removed a needed placeholder etc). All in all pretty nifty tool.
I agree, but I think you need hope in order to be happy. I.e. happiness is the combination of high hopes and low expectations.
Without high hopes you could just be anticipating things to get worse which tends to lead to anxiety and just a general glum outlook on life. Hoping things will be better tomorrow, but expecting things to get worse is a subtle but important mindset shift.
https://javalin.io/news/javalin-5.0.0-stable.html