It is not exclusive to LimeWire, as I know you know, stief...

It applies to all of the better clients and networks.

I mention this now only to make it clear that it is not only LimeWire being used as a 'tease product' to encourage 'new users' into a trap.

As others have said, read the fine print and you will see that these groups are 'legal' in the letter of the law.