Webwork - 9:15 pm on Dec 21, 2010 (gmt 0)
Robots.txt in now way protects you from this
My thoughts are that some % of leeches use Google image search to find images "to reuse". If the images aren't "in the index" then that makes hunting for images a bit more of a challenge. It's apparently a trade off of good (search images, visit site) versus bad (use image search to rip off images). I suspect it's an issue everyone with decent original images faces. It's not clear how the "solutions cluster": what % block image indexing, what % allow, what % allow and attempt to "hassle" image theft with watermarks, etc.. Probably those with better data can better evaluate the risks vs. rewards.
For now, until I work out how to "otherwise protect" original "quality images", including filing for copyright on some, I'm taking the low tech approach by simply making them harder to discover. May well take a traffic hit.
Decisions. Decisions. Bleh. Argh. Ugh. ;)