I'm of many minds about this larger issue. I'll try to mush it all together into one (somewhat) cogent response...
Because of the necessities of making a film or TV series, the props are often not able to stand up to close scrutiny. Go to the Star Trek Experience in Vegas, and look at the props and costume pieces they have on display there. About the biggest exception I've ever seen is the work WETA did on Lord of the Rings and Narnia. Sweet Jesus, those are guys after my own heart. I take what the wardrobe and prop people did (usually) as a decent starting place to get things "more accurate than the filmed version". *heh* By which I mean, accurate to the fictional universe it's supposed to represent.
I even have a long-term project to try and make a working gyrojet firearm out of Deckard's gun from Blade Runner.
How this applies to Star Wars and the issue here? I never liked the F/X armour, as it was obvious even to a newbie that it wasn't film-accurate. The T*E armour was my first exposure to someone doing a recast of a film prop, and to me that was the almost-holy grail. If I got that I would have not been satisfied until I'd "fixed" those production errors that are such a hallmark of the costume -- bumpy casting, warped plastic, the divot in the one lens frame, etc., and gotten the thing trued and balanced and symmetrical (except for the things that aren't supposed to be), and can call it perfect. *heh*
So I guess what I'm saying is that I don't consider recast props to be the end-all of this hobby, but the best reference one can have to "get it right". My personal feeling on the matter is one of civic duty. If, for example, I come up with an original prop, figure out how to spiff it up to look good up close and personal, it's pretty much be my responsibility to make it available to others who might be looking for the same thing. And that I'd only want to be compensated for materials used, time spent, and any expertise involved in making the bloody thing.
Not saying all of this justifies the name-calling, but I have felt the impulse to climb through the monitor and throttle someone, myself. It's tough to stay filial when you feel your integrity is being challenged, rightly or wrongly.
--Jonah