I don't know how LimeWire displays search results especially when it comes to showing the count of sources. So I'm not sure whether I've seen this or not. I searched for episodes of Lost b/c I don't really know what's popular in the US nowadays or what Wollyhood is doing anyways. I didn't find anything with more than ~30 hits but many of those hits had 10 and more alt-locs. That could have been what you see. As far as I know, LimeWire doesn't filter any bad or non-assigned addresses at all, so someone might just send tons of results with such addresses just to turn everyone off. PeerGuardian won't help you one bit b/c it can only see incoming and outgoing traffic but none of the addresses exchanged within any protocol. Well, even if you filter such bogus addresses, they could simply use random addresses for the same effect.

Then again it could simply be a bug. Maybe LimeWire has an endian issue with its new DHT toy? You could actually take that for granted if it happens with the Mac version only.