IMO it's a good thing to like perfection if you encode. So if you get a source with NTSC->PAL framerate conversion (every 25th frame is a copy of the 24th) you should notice and fix it back to NTSC framerate, deleting the duplicate frames. At least 95% of the anime viewers would not notice. But you, as an encoder, need to! Because this stuff is subtle. People might not know it's a duplicate frame, but they feel something's not right.
The problem with encoding is: Everyone can do it, but most people who do it don't do it right. They do things that usually work, but sometimes don't. Good encoders are not satisfied until they know they must be close to the best solution possible.
Also, it's soooo frustrating. For me, it's only damage reduction... The raws I get r usually bad in so many ways, I don't know whether to laugh or cry.
About doom9: Elitist it may be, but as an encoder, there's no way for you around it. Its search function will already answer most of your questions.
