It must be the thought of winter passing but there seems to be a bit of a buzz at present regarding base weight, Hendrik put an interesting piece together discussing the various classifications and others myself included have been replacing or upgrading a few items with a view to reducing our base weight. There certainly seems to be a greater awareness of 'Lightweight Backpacking' in general with almost everyone regardless of what gear they use looking at lighter alternatives and some of the more traditional/conservative manufacturers are now getting involved. It could be argued that some are merely jumping on the bandwagon so to speak but it was inevitable and can surely only be a good thing.
Of course there's a certain amount of fanatical evangelizing and in some, thankfully rare cases a certain tone of derision where mainstream or heavier gear is concerned. It's important to offer advice to anyone wanting to reduce their base weight but gear choice is a very personal matter and personal comfort has to be considered so if someone for example simply can't use a lightweight sleeping bag as they tend to sleep cold, simply can't get a decent nights sleep on a CCF mat, prefer boots over shoes or prefer to use a rucksack with a more substantial back system than a piece of CCF then they thats what they should use, after all backpacking or camping is supposed to be enjoyable.
I was looking at the PHD site earlier and found an interesting article which is really what prompted this post, I think it's well worth reading.
PHD Ultralight Gear Briefing