jonS-5

Problem:
Mailchimp and other from plugins do use tooltips.

Solution:
Those strings are usually displayed in browser user language. So, there is actually no need to translate them. If you switch the browser language to German for example you should see how the content changes.

Actually each browser has it own way of displaying them, as thez are generated with JavaScript programatically.

Relevant Documentation:

https://en.wikipedia.org/wiki/Tooltip