I don't think many rappers are picking those type of beats anymore but I still hear beats on cloudsound and various other places where a producer will have one or two sped-up/chimpmunk sounding samples in their beats.

I don't think it was ever a bad thing to do it, it just got out of hand cause everyone started to do it and some producers where going too far with how fast/high the pitch of the sample was to the point it was funny instead of listenable.