The only threads with Rebel (previous to bonding you) are the one where he tries to join the Violet Sunrise
http://sionayra.com/roleplay/viewtopic. ... ilit=rebel (he isn't in the list of members on the main site, however)
I don't remember seeing WildFire in the threads at all (and I've stalked them all the way back to the very first ones (in this new board, the older ones (pre 2004) I've no idea of) where Foxx posted with Prophet), only that he was my first fascination and that he looks.... VERY intense/fierce/I-keel-you-now protective. The name Wildfire is used in this thread:
http://sionayra.com/roleplay/viewtopic.php?f=1&t=41 but I think it was a mistype for Chaos - it disappears after the first couple pages. It also says Wildfire is the son of Ram and Venom, but he's Red Sands and Chaos (whose name replaces that of Wildfire after a bit) actually IS their foal, soo... Plus the bromance between Chaos and Silver is pretty well known. xD
Other than that, I think it was mostly that Rebel was a baddie but super sweet to anyone he actually cared for, which was rather special to be considered one of those few he let actually get close.