Anyone seen/remember the movie, "Eternal Sunshine of the Spotless Mind" with Jim Carrey, Kate Winslet?  It's a great flick about precisely this concept (and associated problems).  Worth a watch.

Also, natural entheogens (non-synthetic psychedelics) have been proven capable of healing PTSD, helping people to quit even the hardest of drugs cold turkey and never go back, etc. **while still keeping their memories and everything about their person in-tact**! 

This will sound a lot more believable when one takes into consideration the monetary effect it would have on big pharma (or really, the consumer-model of medicine in any capacity, as sometimes a single session with Ayahuasca, Psilocybin, or DMT will correct the problem for the rest of the individual's life, as opposed to ensuring that they perpetually need a refill.  

Just look how hard they've tried to come against Kratom because it gets people off opiates:

http://reset.me/story/dea-kratom-ban-creates-outrage-people-will-die/

In any case, I've gotta side with @dwinblood on this one.  The science fascinates the pants off of me, but if the source code (my pet name for the universe) already provides us with patches for the glitches we incur,  deleting elements of our overall system seems like a very poorly thought out "solution" with overwhelmingly more potential for bad than for good.

It's kind of like saying, "the buttons on my web site are dead."
"Just delete them."
"But then I won't be able to link to content on my other pages!"
"Yeah but hey... no more broken buttons!"  ;)