i rivalry would imply that two equal sides are battling it out.
the only thing i see is a group of posters who come over here and continually take a 5-iron to simpletards minuscule nutsack until he cry/laughs his way out of a bet he sets up.
1. It's a metaphor, genius. 2. The ad I got at the bottom of the page is for Calloway drivers. Looks like adsense thinks we need to upgrade from the 5-iron.