Yes Breck they still do. I was asked once when I tried to donate plasma and was told I couldn't back them because of my ear rings. I think they told me you have to wait at least 6 months to a year afterwards. My holes in my ears were kinda new so they said I couldn't then.
They also looked at my veins at that time and said they didn't know if they could do it then either because of small veins. They always use the smallest needle they can on me because of my small veins but I guess I never put 2 and 2 together before. I guess the needles are kind of big for donating blood and plasma.