The SEO Bar talks to you when you hover over or tap it.

It's a nice little anthropomorphic touch to the plugin. However, there are a few problems with it:
So, I'm proposing to list all "why" issues with the item.
When there aren't any issues (bar block is green), we should state that everything's OK.
For example:
%s may not be indexed:<ol><li>This blog isn't set to public.</li><li>%s is in draft</li></ol>
Result:

Note: WordPress' and browser CSS interfere, we need to adjust this:
.widefat p,
.widefat ol,
.widefat ul {
color: #32373c;
}
ol {
margin: ?;
}
Cross-issue: Aria-labels shouldn't contain HTML tags. Fixed in 9fbf39e255e53181c2518d37b0f06883713110a2
I like this from a translation point of view.
We have to rewrite the SEO Bar for #345. As such, we might as well do this.
Most helpful comment
I like this from a translation point of view.