Admittedly, they can cause some people to lose inhibitions, not unlike alcohol.
But they're much safer, and a far higher therapeutic index than the old barbiturates. Plus they deaden the overactive fucked up nerves in my ears, and allow me to have some remote semblance of enjoying music (I really don't, it's still distorted, but my ears don't feel like they're being burned inside out the whole time). When sound distorts, my ear literally fucking burns. So I know for a fact that it's nerve damage, cuz it can't be anything else. One day I want to shove a screwdriver or a drill running turbo speed through it.