Solved [K4.0.0B3] Duplicate meta descriptions

if you go to:
Google Webmaster tools -> example.com -> Search Appearance -> HTML Improvements -> Duplicate meta descriptions

You will see a lot of Duplicate meta descriptions, some of these can be solved by blocking some pages in your robots.txt:

Disallow: /user/
Disallow: /*?*

What can I do if I don't want to block any page?
I really don't know, I am just waiting for the kunena developers to add a fix for this issue under the next stable release.

What happens if I just ignore these Duplicate meta descriptions?
Your SEO score will be negatively impacted because google-bot and others bots doesn't like Duplicate meta descriptions.
Sorry to say this but... your competition will always take the lead in this regard.

Hello,

On which pages it appears duplicate meta description ?

I'm wondering the same thing as xillibit. I could not find duplicate meta descriptions in Kunena when looking through the source code of multiple views (category, index, and topic).

On these pages for example:
view-source:http://www.kunena.org/forum/profile/1288-xillibit
view-source:http://www.kunena.org/forum/profile/1230-josh

and these
view-source:http://www.kunena.org/forum/k-3-0-general-questions/133665-problem-with-html-tables-in-kumena

view-source:http://www.kunena.org/forum/k-3-0-general-questions/133665-problem-with-html-tables-in-kumena?start=10

The only meta tags I see on my Kunena profile and a Kunena topic (mentioned above) are:

<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<meta name="keywords" content="Kunena, to speak, forum, FireBoard, joomla, community, social networking" />
<meta name="description" content="Kunena! - To Speak! Next Generation Forum Component for Joomla" />
<meta name="generator" content="Joomla! - Open Source Content Management" />

The first one is for responsive design. The second one is for the character type. The third is the keywords. Fourth is the description and the fifth is the CMS generator. I did not see any other meta tags. Am I missing something? I looked at the source code with the latest versions of FireFox and Google Chrome on a few of the pages.

These are duplicated:
<meta name="description" content="Kunena! - To Speak! Next Generation Forum Component for Joomla" />
and
<meta name="description" content="hello, I have a section on my site where i can post html table representing chess position, I create the diagram ..." />

Please note, every page should have an unique Meta description content

I am not talking about duplicate Meta description within the same single page, I am talking about duplicate Meta description across multiple pages

In conclusion
This page:
view-source:http://www.kunena.org/forum/profile/1288-xillibit
and this page:
view-source:http://www.kunena.org/forum/profile/1230-josh
Should have different Meta description