Oi, @BugDevil, mate, you REALLY need to learn to drop an argument.
It doesn't matter if you're right, if your points are clear and logical, or even if you're handling this in a civilized matter. When a discussion seems to get out of hand, especially for something as trivial as an image, you'll get the mods' attention, and that's a bad sign.
So, the moment you start writing the hundredth word in a single comment, or the third reply to the same discussion, stop for a second. Just stop. And think: "this already got me banned once, I don't want that to happen again". And then delete the unposted comment, and drop the argument altogether. If "just letting it go" isn't your style, then write a shorter, conclusion-type comment, and add something along the lines of "And this is the last I write about this specific subject, on this specific thread, until it becomes relevant again, maybe. Sorry we couldn't reach an agreement, thank you and goodbye."
Believe me, I really like how passionate you are about finding and divulging the truth, so it'd be really sad if that ever got you perma-banned from this site.