This plugin utilizes Google reCAPTCHA to help your blog stay clear of spams.
BWP reCAPTCHA supports no CAPTCHA reCAPTCHA, Contact Form 7 and Akismet.
WordPress.org Plugin Page
The graph shows the recent activity of your contributors. It’s updated once per day.
For each locale a plugin can have translation editors and contributors. If a locale has no editor yet then you should probably make a request.