OK, two brief issues.
Firstly, the tracker occasionally reports that I'm leeching when I'm actually seeding. However, from what I've gathered, that's an unimportant bug/feature/whatever, so I'll float right on by that.
Secondly, I recently noticed that six of my torrents are reported as having an infinite ratio. One of these, Yakitate!! Japan, I sort of understand, since I got the series from a friend, then did a quick (note: not actually quick) rename of the files, then redownloaded episode 34. However, the rest I leeched in full from the site. In particular, Gintama's first season and Bounen no Xamdou, which were the first two. Then Yakitate!!, Outlaw Star, Lucky Star, Haruhi Suzumiya, and the Eureka Seven OST collection. For these seven torrents, Vuze lists me as having a ratio of 0.369, 0.291, 1.138 (since I only downloaded 150MBs or so), 1.441, 0.843, 1.527, and 1.889, respectively. My profile page lists the ratios as infinite, and the number just below that reads 0x. After reading
this post, I checked when the torrents were swapped. Those that were swapped were swapped six months ago at the latest.
I'm using Vuze 4.2.0.2. I noticed the problem while I was on a (theoretically) 1MB broadband connection, and I'm fairly sure this happened just before I switched ISPs. I'm now using a 3MB cable internet, which I'm accessing through a wireless router. I'm pretty sure that isn't affecting anything, but I'm listing it for completion's sake. My current ISP is known for a bit of throttling, but this happened just before I switched, as I said.