It works for some of the largest companies in the world.  You're telling people that you're a  legit company with nothing to hide.

Use it as a CTA and test it out!

Zappos:

name="description" content="Free shipping BOTH ways on shoes, clothing, and more! 365-day return policy, over 1000 brands, 24/7 friendly customer service. 1-800-927-7671" />

I agree w/ AWC.

If you do watermark, just make sure it's not the least bit distracting.

One ecomm site I work with has over 10,000 original product images.  They were constantly being stolen, which is annoying considering the effort that goes into the production of the images.  Once they were watermarked (via the ecomm platform), the poaching pretty much stopped.

Agreed! That's why I suggest using it in combination with the variables you mentioned above.

"...a combination of operating system, location, and some other factors can do the trick."

Yep, combined with those, look for "Avg. Time on Page = 00:00:00"

It works for some of the largest companies in the world.  You're telling people that you're a  legit company with nothing to hide.

Use it as a CTA and test it out!

Zappos:

name="description" content="Free shipping BOTH ways on shoes, clothing, and more! 365-day return policy, over 1000 brands, 24/7 friendly customer service. 1-800-927-7671" />

I agree w/ AWC.

If you do watermark, just make sure it's not the least bit distracting.

One ecomm site I work with has over 10,000 original product images.  They were constantly being stolen, which is annoying considering the effort that goes into the production of the images.  Once they were watermarked (via the ecomm platform), the poaching pretty much stopped.

"...a combination of operating system, location, and some other factors can do the trick."

Yep, combined with those, look for "Avg. Time on Page = 00:00:00"