I'm not assuming that. I'm just being realistic - much of what goes on at Satdudez (especially the posting and downloading of files) is construed as illegal by providers and owners of encryption systems. So anyone who will engage in such activities is well advised NOT to register under a "real" email address unless they want to run the risk of being chased by said authorities.
This is especially true for those that contibute to the information or files, since it is they who are distributing or publishing the info. Those just downloading will generally speaking be ok since the mere act of doing that (as opposed to using the downloaded files) is not illegal. But under most (all?) EU countries' laws, the act of uploading or publishing/distributing the info IS itself illegal - they don't need to catch a publisher in the act of using the files.
That's why I say that those least likely to worry about the anonymity issue are those least likely to be contributing (to that aspect of the hobby).
By the way, I think there's a strong case for the existance of entirely legal boards (no files, no publishing of illegal info such as keys, no publishing of copyrighted materials such as CAM schematics or firmware, etc etc.). Hust good discussion on the technologies, receivers, techniques, feeds, etc. In fact I think that this board (sat.uk) comes very close to that, so most of us here aren't too concerned by the anonymity issue.
But Satdudez is a different kettle of fish.
2old