Right, so I've decided to completely forego watermarking my images. It's not doing anybody any good that I can tell, and it can distract from the photograph. I own the photos, which is obvious and easy to prove. I understand why people watermark their images, but since I don't make money from them anyway, why detract from the image with a copyright that already exists?
Discuss, if you feel so inclined.
This is quite a coincidence, because I was talking with a pro friend of mine about this very thing the other night. The truth of the matter is, the watermarks that you, or I, or others have used in these forums is easily cropped out. Unless you plaster it across the center of the photo, it's not going to stop anyone from using it if they so desire.
Photos are stolen all the time. It recently happened to another friend of mine who called me in a panic at midnight wanting to know how to watermark her photos because she found one of hers was being used on a site without permission. I explained that a watermark in the bottom corner wasn't going to help, and gave her the advice that will follow shortly.
If a photo is stolen, there really isn't a whole lot of recourse. You can ask a site admin to remove it, and if they're not just complete jerks that is sometimes enough. Proving ownership in court, though, is not as easy as it may seem. This is especially true if you only shoot in JPEG.
If you're truly concerned about retaining full control over your images... DON'T POST THEM. That's the only real safeguard. Short of that, there are a few other things you can do, but they're not foolproof.
1. Set up your camera to embed your name and copyright info into the EXIF data. You can easily do this on Canon DSLRs, and I'm sure others. This can still be removed using various software, but gets overlooked.
2. Resize and post low-rez images online. There's really no reason to put a full 5184x3456 image online. Some sites, like facebook, automatically resize it when you upload it. Make it suitable for the digital world, not for print. A file that is suitable for most desktop backrounds won't end up on a billboard or in a gallery somewhere, because it can't be blown up and printed that big without a serious loss in quality.
3. Shoot in RAW or RAW+JPEG, and keep the RAW file to yourself. About the only way to prove a photo is yours is to be able to produce the full size raw file when nobody else can.
4. Use 500px (I'm sure there are others) rather than Flickr. Photos can't be downloaded from 500px. They can be bought in printed form, or downloaded as a desktop backround file, but your uploaded file is safe. If you use Flickr, be mindful of what sizes can be downloaded.
I had a request a few weeks back from a guy who wanted to get my Kansas City skyline picture printed. He wanted to get a large canvas print for his office, and was wondering if I could send the file. I gave him the options of going to 500px and buying it in the store, or I could get it printed and he could buy it directly from me. It's not that I have any desire to make money at this, it's just a hobby that I really enjoy, but I wasn't going to send him a hi-rez file to do with as he pleased. I got it printed on canvas, and after signing it as he requested and receiving payment, sent it to him for the costs involved. He's happy, and I'm humbled.
So there's my take. I'd be interested in what others have to say as well.