Very interesting post. I learned some new things today. I wasn't sure if it was ok to advertise on here. I provide a link to my own stock image when I use it on Steemit, but it's more to prove that the image is mine and not swiped from the web. I will be rethinking things after this post. By the way, I grew up in Scotland and my Mum always used to say to me "There's no such thing as you can't. You mean you won't!"