Translation file contains multiple versions of entries

It seems that some entries in the translation file appear multiple times. Perhaps these are older versions. Search the codebase, for example, on Welcome to our fictional social network Veebr and you will find nine results: one in the PUG template and eight in en.yml (in four keys and in four values). Checking which one is actually in use is not simple because the keys are actually full texts with paragraphs and the keys can even be escaped differently in different places: If it\'s a name versus If it\\\'s a name for example.

This makes it harder for us to make proper changes and it quadruples the work of translators.