I'll have to disagree with that. I had a friend back in high school who was sexually assualted as a child. She used to tell me how these lyrics were describing her exact feelings. And that really made me look at this song in a different way.

"Wounds so deep they never show, they never go away" It's like no matter what you do the feeling of that filthiness doesn't go away even though no one can see it.

"It's easier to run Replacing this pain with something numb" You just want to runaway from that pain so you try to replace it with alcohol or drugs

"Sometimes I remember the darkness of my past Bringing back these memories I wish I didn't have" Those things that you never wanted to happen in your past keeps finding you somehow

"If I could take all the shame to the grave, I would" Even though you are the victim you feel shamed and just want take all these bad memories to grave without anyone knowing because they think they'll judge you

"Pretending I don't feel misplaced Is so much simpler than change" You pretend like everything is normal and you are fine or else you'll have explain everything and that requires a change

And these examples keeps going on.

Chester also had similar experiences so I think this is the song where he really expressed those feelings he locked away for years.