Do you think it is a bad practice to watermark images you put on an automotive site that you do. I have a case where people like to steal my photos often from my automotive portfolio but I do openly share photos on facebook. Do you think it is okay to watermark photos on my site and on my facebook pages? Will people look down on this and degrade the quality of my work if i have watermarks. I do occasionally sell photos that I do.

What are your opinions on this???

Thanks in advance!