Codeen proxies and legal issues

Did you use codeen proxies on a larger scale? I mean, they are pretty responsive, allow for POST requests, are not used with malicious man-in-the-middle attack software, etc.

Did you use them on a larger scale or would you recommend not to use them that way?

The "welcome" page let's us know that we are not really welcome. But damn, those proxies are good and free.

Thanks,
cooooookies

Here is, what they write about themselves:

All accesses via CoDeeN are logged, mostly to aid in identifying abuse and other forms of damage control. We sometimes monitor these logs, report abuse, and release entries to aid in investigations. In case of suspicious traffic, we may access URLs from the logs to determine what kind of content is passing through our network. We are also using these logs in our own research, so they may be examined as needed for non-abuse reasons. For normal users, we do not expect that we will intentionally release any personally-identifying information. To prevent abuse, some sites have requested we pass along the client IP addresses, and these are included with every request forwarded to those sites.