I remember my first time posting on 4chan, but it wasn't in /a/.
Just a few days after Longhorn was renamed Vista, I had found a shopped picture of an evil looking little girl that someone has written "Vista-chan" below.
I made sure that I created a cool name, registered it with a trip code, and wrote a great story about little Vista-chan harrasing her users. I thought I would go down in 4chan history as the greatest poster ever.
Instead, the thread sunk like a stone, falling off page 10 without a single comment.