One of the biggest on going and most dificult to stop crimes on second life is texture theft. I gave up on it. One of the things I do best is making textures with Genetica. I figured I could make a bit O coin on SL selling textures. With in a month of me releasing my first texture pack I found it as a freebie at one of those freebie box sites on SL. 

At one time I had 12 texture packs up on the SL merchant site. Before I quit SL you could find most of them free someplace "in world".

When DAZ released the last version of Hexagon it came with SL scuptiy tools. And I will admit aside from a couple of minor bugs, it worked great. DAZ stepped in to SL at that time, but was there very shortly as they watched people trample all over their copy rights. In fact you can find people selling mil2 and 3 skins all over SL. They drop the resolution, change them enough to match the SL character UVs, then start selling them.

So yes I can see why DAZ would be quite pareniod about texture theft. But this is nothing new. You've never been able to post screen shots of textures on the forum. I had a couple pulled where I was trying to show some seam mismaitches. So I don't see this as any sort of DAZ underhandedness, I see it as a sound busyness practice.