It relates to my question over here, where the reply was that:
I further tested this and indeed - anonymous users don’t even see a translation post action button:
As such, it would be nice if there was an option to show the translation button to the anonymous users which would then navigate them to the login/signup page upon a click. This is the current behaviour of the like button.
And after thinking about it a little bit more, I assume the feature request could be resolved with a small theme component. Is that the case?