It's the 100's of single textures for items like the DAZ Cyclorama or multiple clothing textures for commercial products where all that's been done to them is to change the colors that people complain about the most. Also people have a problem with people uploading textures that they do not own and did not make from other websites that host these images. ShareCG's TOS says it should be your own work that you're uploading and not somebody elses.

My own Lost In Space stuff falls under the catagory of collaborative work since it's not all my own work but I give credit to the other people who've worked on them and have the proper permissions to redistribute them. All of the Lost in Space items were previously hosted by me on lostin3d.com. Most of them have improvements over the originals that I did myself.

It is a miracle that curiosity survives formal education. - Albert Einstein