How are clouds 2.0 better than ordinary clouds?

On the utility and convenience of the tag cloud on Habrahabr there is not much to say, the thing is cool. And her informational content is high. Then what is Cloud 2.0 and why is it needed?
In short, this is a multi-cloud that works like this: the user clamps with a finger or another device;) CTRL key, successively presses 2 or more tags (tags), the selection is displayed under the cloud or directly in the cloud, releases the CTRL presses on the last one tag or the corresponding button and as a result receives a selection of articles not by one tag, but by the greater number of articles, so the relevance of the sample results increases.

Also, I think it would not be superfluous to show the title (pop-up prompt) for each tag of this type “X, Y”, where X is the number of articles with this tag, and Y is the date of publication of the last article with this tag, for example: “1471 , January 27, 2007 ”.

With respect and sincere love for Habrahabr, rumkin Pasha Ryumkin.