Pffffft.  Ridiculous.  If there's stuff you can do to clean up noise on the track or EQ it a bit to make it sound more like it did live, you just do it.  If anyone considers something like that "cheating" tell them to go soak their head.

Seriously, I have a couple hundred bucks' worth of gear I use when I go to make an analog recording.  A studio mic, tube preamp, and etc.  Would I be somehow more "honest" if I tossed all that gear in the corner and did recordings with a headset mic from a dollar store?  LOL  Not likely to happen.

There is no virtue in sounding worse than you have to.   And certainly no shame in spiffing up the sound a bit when you had to use a teeny little mic that was made mostly for picking up spoken voice legibly rather than your beautiful and beloved instruments.

@RosinedUp: But we are not talking about "what an acoustic player can do with just the bare instrument".  As soon as the sound goes into the microphone, it is no longer "bare".  Even a very good microphone will add some coloration, and the way that any microphone that I know of responds to the sound waves so far as dynamics is not identical to the human ear. 

A raw recording is not the same as a bare instrument.

Recordings are also not the same media as live performance, and they are not actually listened to in the same way.  A live performance happens once.  If you are there, you hear it.  Once.  Recordings, on the other hand, are often played back multiple times.  Idiosyncrasies of the sound that will be ignored in a live performance can become very noticeable after a listener has played back a recording even a few times.  

What we're talking about, so far as I know, is recording violin with a video camera.  Not an optimal sound recording device at all.  Other than the small diaphragm and aperture of the microphone, the circuitry in the camera often will not cover even the whole range the human ear can hear.  Even more heinous, it may have some frequencies intentionally damped to make wind noise and handling noise less of an issue.  For more fun, such cameras often have auto-level circuitry that tries to turn the recording volume up when the sound is quieter and turn it down when the sound is louder.  Assuming that actually works well (often it does not for musical instruments, since it was usually designed to pick up human voice) it can result in basically wiping out the dynamics the player put in.  If the auto-level works poorly, then it can produce some rather erratic volume changes at inopportune moments.  Think of that perhaps as "random dynamics", since it will also not be what the player actually played.

Another problem to consider is that most cameras "hear" in mono, while human ears are usually stereo.  That will make the instrument sound deader and smaller than it did live.

I could go on.  There's plenty more.  But I figure I've probably put most readers to sleep already.  My point is that "raw" does not mean "more natural sounding" with a typical amateur recording done on typical home gear.  It is not "more honest", and it does not necessarily reproduce even something as basic as the player's dynamics accurately.  It is almost always going to be considerably worse than real life. 

(So take heart, folks.. You really do NOT sound as bad as your digital camera, video camera or webcam makes you sound.  LOL)

So far as wild manipulations that would be the audio equivalent of using an airbrush on a photo.. Last I noticed, most people here have enough on their plate with just trying to get some kind of a reasonably clean recording.  Unless a lot of us are closet sound engineering wizards, corrections to pitch and fixing every little mistake for something we're just posting here is pretty unlikely.  It would be a lot less work and learning curve to just do it again and get it right.  Or at least get it good enough that we feel it is acceptable for posting on a "learn to play" forum.     

One almost unrelated small other point to consider.. In an actual live performance, even instruments we usually call "electric" are technically acoustic, since the speaker cabinet their sound comes from will have it's own sound/coloration.  Much like a violin or viola, that sound will be affected by size, what sort of wood it is made of, and the workmanship.  What the speakers/cones are made of, what size and type they are, all those factors will determine the acoustic properties that affect the sound the electric player gets.  It will also have all the same problems if recorded with say, a webcam.  Only if an electric instrument is recorded "direct" into the input of a recording device, can we actually say that it was not "acoustic".  Just a minor misconception some folks tend to have.