A) I never done anything like this before. Yes, I did abuse it to some extent, but I only did it for a minute to screen shot them and take it off so it didn't become a problem.
What I did didn't seem serious enough for an infraction. Yes, I mimicked banners used on the site, and used an excessive amount of them, but I just did it for fun. I wasn't promoting the abuse of the exploit, and it was a mistake on my part. A warning could have done the same. Why did you immediately need to jump to infraction?
C) The only proof was the screen shots. I could have easily photoshopped it, or messed with the HTML and gotten the same results. The fact that I didn't was because using the exploit for a second just seemed easier.
Why am I making a big deal about a 3 point rank? I have 13 points right now, and because infractions have a stupidly long wait until they expire, if I sneeze the wrong way before the end of November I'll get banned.