I don't know how long we'll end up using nyaa, but could we agree on one torrent naming convention there which everyone will be using?
We could follow the categories from H!O tracker and e.g. use this:
[H!O][H!P]
[H!O][AKB48]
[H!O][Others]
[H!O] can be replaced with [Idol] if we don't want it to be too obvious where the torrents come from.
Then there could be an optional third tag indicating the type of upload:
[DVD]
[DVDISO]
[DVD-RIP]
[TV]
[Perf]
[PV]
[Webstream]
[Image]
[Audio]
[Album]
[Single]
[Radio]
[OPV]
[HPS]
[Misc]