There is a quite clean solution for creators - snap on a direct link to your tapastc, kickstarter or patreon account in between panels on each page.
Everyone who dares to steal your creation will be forced to cut the link out (which is a fokk load of editing) or will spread your ad over the net.
This will not solve a problem, but will make your creation a bit safer.
Thats my humble opinion and I can be wrong.