From what I´ve read, Lucasfilm accepts picture leaks and such, even if they don´t expect it. So there isn´t that much restriction, or MF.com would have been gone a long time ago.
Anyway, I remember searching for 'Star Wars' back in 1998, when I first got an Internet connection. I distinctly remember reading about Watto and thinking he would be just another scruffy-looking human in dirty clothes, didn´t get that he would be a CG character. (When I saw the first teaser and Watto´s close-up, I thought he was just another CG animal, like the ones they put in the SEs).
I also remember TFN being one of the big spoiler-sites, with concept-art and all kinds of cool stuff to look at and read about. THAT sure changed in recent years! -__-
Ahh, SW was another thing back then, I didn´t know a thing about it, only that they were some cool movies that I saw in cinema and got for Christmas (The SE trilogy). My only idea for the PT was something involving X-Wings and Y-Wings and attacking a base (not the Death Star). That was it.
Basically the Internet was a fun place to read about SW and I can remember some old encyclopedia-sites (now gone) that I had alot of fun with. All the different aliens and background-stuff I never thought about, speeders with their own profiles and races and characters etc. Aww, that was fun stuff.
Then I saw TPM and loved it, and gradually started reading more and more debates and stuff. I´m not sure when I began to realize the vitrol and hatred directed towards the SE's and TPM, but some of the first stuff was the Han/Greedo-thing, which I now consider so irrelevant I *roll eyes* everytime someone brings it up. Eventually, I became morbidely interested in the pro/anti-debates, and I believe SW-debates (among other things) helped turn me into the cynic I am today. Not the films themselves, mind, the debates about the films.