Looks like HTC is turning to become another Apple. Following in their footsteps, HTC is threatening legal action against cooks/rooters who distribute ROMs.
Distributing ROMs is nothing new and has been happening for quite sometime now, however, the problem does not lie with the users who distribute it, the problem lies with the device manufacturers themselves who delay releasing those ROMs to general public for months at times.
No doubt that HTC is coming up with a Android 2.2 Froyo update in the next two weeks, but would users wait? It would be interesting to see how HTC goes after these users, since it is highly impossible that they would get hold of them, and yes of course, if you curb free speech you get underground.