I have a thing about using free images which aren’t really “free”.
When I’m in production-mode, it’s tempting to just do a quick web search for an image, snavel it and load it into the blog or eBook or brochure and make everything look whizz-bang. But unless you’ve bought or gained rights to use that image legitimately then, well, you’re stealing. And with the algorithms churning through online sites finding illegal use of images, you could be slapped on the wrists or worse, slapped with a writ. Ain’t nobody got the time or money for that!