It’s just about time for my yearly trek down to SDCC, which also means another reason to head back to the happiest place on Earth – Disneyland! Everyone who’s been to Disneyland knows about the great rides, atmosphere, and just how awesome the park is.  But for those of you unaware, there’s an even bigger subculture of DL that you should know about – the addictive hobby of pin trading. I got into pin trading about 2 years ago after…