@benfavre yeah I was thinking the same thing.
If you like to do something, stop complaining and be part of the solution. We all work on the project at our own free time therefore demands like the above are not appreciated. @nexik was kind enough to create a pull request (thank you), but this is getting a bit ridiculous.
As for the :
You are asking me to find and change a string somewhere in your sources? ....
The forum software is written in PHP using Phalcon. If you know PHP you can easily change a message on the email template. Oh and the github repo is called forum and @Phalcon already showed you where you can change the code to do so. All you had to do is change it to whatever you like and open a pull request. This would have at least initiated a discussion not a nagfest that this topic has become.
If you want to help, you are welcome to do so. If you don't, don't, but don't complain about it. If you want to make the software better, contribute constructively with code or comments. Otherwise, you will easily end up talking to yourself. Just food for thought here.