dropboxusercontent.comは安全ですか？

Here is Google's latest report on this site: What is the current listing status for dropboxusercontent.com? This site is not currently listed as suspicious. Part of this site was listed for suspicious activity 217 time(s) over the past 90 days. What happened when Google visited this site? Of the 4911 pages we tested on the site over the past 90 days, 0 page(s) resulted in malicious software being downloaded and installed without user consent. The last time Google visited this site was on 2013-05-05, and the last time suspicious content was found on this site was on ***** Malicious software includes 696 trojan(s), 638 exploit(s), 273 virus. This site was hosted on 1 network(s) including AS14618 (AMAZON). Has this site acted as an intermediary resulting in further distribution of malware? Over the past 90 days, dropboxusercontent.com appeared to function as an intermediary for the infection of 10 site(s) including mobilkansk.ru/, ecopulse.org.ua/, ***** Has this site hosted malware? Yes, this site has hosted malicious software over the past 90 days. It infected 227 domain(s), including downfilmes.net/, charliepunyaa.blogspot.com/, *****

This domain is used to host Dropbox public file links (as of April 2013). Because all content is user generated, the types of content can vary drastically. Files are hosted on the dl subdomain: http://www.mywot.com/en/scorecard/dl.dropboxusercontent.com