I love your work! I use it often. Generally, the only way that I use it is:
1. Right-click on an image that is animated and distracting my vision.
2. Choose the last item, "Adblock Plus: Block image...".
3. Click "Custom" radio button.
4. Click "Add filter" button.
As I mentioned above, this is something like 99% of the method I use this. I just did this, and thought, I could use fewer actions, so registered to give this feedback.
Would it be possible to add another right-click menu item? It would be "Block this image", and would do exactly what the four steps above achieve.