Fluency shaping is definitely a self-enclosing loop headed straight towards hell, but let's stop the bullshit dude. It's not stigma. Fluency is obviously the default and desirable alternative whereas stuttering is not only bad, but absolute shit. Radical acceptance would drive you to love yourself despite your stutter being a bad thing, not make you desperately cope by trying to remove that naturally occurring distinction by labeling it as socially constructed stigma.