Header fetching is only "extremely basic" in the way that a steam engine is "extremely basic", i.e. a redundant technology. In this case, superseded by quicker methods that offload bandwidth and local disk usage to an indexing server. Sometimes the indexing algorithms get it wrong and miss part of a post here or there, especially with posts like the ones you cited that have obfuscated subjects (and why is that?). I'd be more worried if the free engines regularly missed whole posts rather than trivial .nfos that can easily be found elsewhere. I simply don't see the point of clogging up my drive and wasting my bandwidth for such a meagre benefit. And I'm glad that Alt.Binz development over the last year hasn't been held back by a need to incorporate and bug-fix a backward approach to using binary usenet.
This doesn't mean it won't be in future. As I said, Rdl disagrees with me, if I recall our last discussion about this properly.
Anyway, this thread is going round in circles, and I meant what I said about keeping the discussion civil.