17
I guess what a person considers a "high profile" site depends on what industry or topic you are interested in. Personally, I haven't heard of any of the sites that have been mentioned as "high profile".
I have, though, spent a couple years testing out and trying various CMS's for the past 2 years ... trying to find one that could handle, relatively securely, all that I needed it to do for my own personal website that is also a sort of information site for people who are disabled due to, or afflicted by, the same illness that I have.
XOOPS is the only CMS that I found and tested that "passed muster". And yes, I tried Drupal.
I finally changed my personal site over to XOOPS in February ... and since then have had almost half a million unique visitors. I know that is not a huge number by most peoples standards ... but its significant to those seeking information about that which disables me.
I don't want to get into a discussion about what CMS is better. All I am saying that for me and my needs ... XOOPS was the ONLY logical choice.
JMHO
Peter