They're probably (almost certainly) bad. They're representing the RIAA, MPAA, etc. But without openness, who can know?

And how do we know if it's good or bad? The details are unknown.

Well, there is this: http://thepiratebay.org/torrent/5425059/ACTA_Agreement_leake...

We know they're bad because they're unknown. If there would be no significant protest, mostly passive buy-in, then there'd be no reason to keep it secret.

All dark rocks hide cock roaches.