Absolutely.

It seems that the people at ubuntuask.com have a different (meaning "wrong") interpretation of the license.

It actually says not only that attribution is required, but that attribution is required **in the manner specified by the author or licensor**, which - on Stack Exchange - includes this:

> So let me clarify what we mean by attribution. If you republish this
> content, we **require** that you:
> 
> 1. **Visually indicate that the content is from Stack Overflow, Meta Stack
> Overflow, Server Fault, or Super User** in some way. It doesn’t have to
> be obnoxious; a discreet text blurb is fine.
> 2. **Hyperlink directly to the
> original question** on the source site (e.g.,
> http://stackoverflow.com/questions/12345)
> 3. **Show the author names** for
> every question and answer Hyperlink each author name directly back to
> their user profile page on the source site (e.g.,
> http://stackoverflow.com/users/12345/username)
> 4. **Hyperlink each author name** directly back to their user profile page on the source site (e.g., http://stackoverflow.com/users/12345/username)
>
> (from <http://blog.stackoverflow.com/2009/06/attribution-required/>)

There's a [question where you can report this site](http://meta.stackexchange.com/questions/131846/report-sites-that-use-stack-exchange-content-without-following-attribution-rules?answertab=oldest#tab-top) at SO Meta. Please add a new answer to it.