Yes, definitely. :) The same person/people/institution that hacked the DNC released the documents and set up the site, so it wouldn’t be surprising if they saw it as an opportunity to hack more people. I don’t think there is a huge risk in visiting the site, but it is worth being cautious. People have run virus scans on the docs and they came back clean.
That’s what old systems with maybe a linux live distro are for.
That may be the explanation for the fact that not many of the docs have been reproduced on internet blogs and so forth. I’ve seen some posted, but I would love to see this story take off. It will do so only when sites began actually posting the documents themselves, I believe. The articles about one of Clinton’s campaign documents saying Clinton would (exact words) “muddy the waters” when it came to her scandals was great, and detailing her relationship with a compliant press, was great,but hasn’t caught fire yet.