As long as it does not lead to endless edits post release I am fine with tweaking it. However recent CGI-fests like the Hobbit series do make me think some directors don't know restraint.
Peter Jackson is exactly that kind of directors. And he is consistent in that. Even before LoR/Hobbit, check out King Kong made by him. It's like watching Serious Sam, never-ending battle with CGI monsters, boring and pointless (as part of the movie, playing SS games is fun of course).
I watched all of the special features on the LOTR extended editions back in the day. It seemed like they were extremely proud of their "bigatures". It's a shame that they seemed to have completely abandoned a technique that worked so well.
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