When clicking on the link from my office (which happens to be in a data center) I get this:
> whoa there, pardner! Your request has been blocked due to a network policy. Try logging in or creating an account here to get back to browsing. If you're running a script or application, please register or sign in with your developer credentials here. Additionally make sure your User-Agent is not empty and is something unique and descriptive and try again. if you're supplying an alternate User-Agent string, try changing back to default as that can sometimes result in a block.
These kinds of blanket bans on data center IP's ignore the fact that real humans do use them. As for user-agent, I'm using Firefox on OSX with no user-agent obsfucation plugins.