.com? Is that wise? I imagine the domain will be seized as soon as the site becomes popular enough. They should at least have some contingency plan to deal with that.
Also, academic datasets aren't free of copyright concerns. Consider the famous Imagenet dataset for image classification. It's made of a million images pulled from Google Images. Did they get each photographs' creators' permission for such unlimited redistribution? Of course not. But there's no way the 'implied license' of posting a photo online extends that far... Like so much of the Internet, it's only possible in the absence of enforcement of copyright law.
* which is particularly frustrating because academic publishers make such enormous profits and hosting large datasets is exactly the sort of thing they should be doing if they were remotely interested in supporting science rather than making more money
Thinking about http://opendap.org/node/305 for context.
[What is OPeNDAP: http://opendap.org/about]
Here is one of the plots from 2014: https://i.imgur.com/Ecr44AZ.png
That may have been an autocorrect "correction" of the word "subdomain".