Very much agree with you, Fang Zei. Fucking hate what Raimi did to Evil Dead, this is real revisionism as most people get that Star Wars has been tinkered with by now, but most people doesn't know these other invisible Special Editions are out there unless you seek the information on the internet and on various forums.
Most people don't care but there's always those who would find this unacceptable if they knew what they bought wasn't exactly the original film that was shot. And this disturbs me as much as the alterations themselves, people don't know what they are buying, I doubt it says on the case what tweaks that's been done, it started with no mentioning at all that the soundtracks had been re-mixed on DVD releases, now they have taken this further with picture content, love this trend...
As for Aliens - Special Edition, the pulse rifle/ flamethrower edit mixup on the dropship, had apparently been corrected already in '92 for the broadcast version of the Special Edition, only for the DVD transfers to bring back the continuity error, not sure if it's true or not, I guess you'll have to check the old LD's.
The Special Edition has actually evolved somewhat since its broadcast debut in '89. As long as the original theatrical cut is just that, I'm fine but I don't know if some of the blu-ray fixes are seen in both cuts as I don't own it. See some of the digital alterations here: http://www.movie-censorship.com/report.php?ID=294598