Are people with tattoos thought of negatively in the white collar world?

Yes

Yep

Forearms, neck... probably.
Concealed... not a big deal.

Yes

Depends on the tattoo IMO.

If it was something that was clearly gotten because they just wanted a tattoo, those people are trash.

If you went through shite, have a special story, earned it etc.... That's another thing.

Yes. People with tons of visible tattoos are viewed as lacking self control and good judgment.

I think that's somewhat true in my experiences, although I would weigh other factors more heavily in a hiring situation.

For us Generation Y's, it seems not having a tattoo is more rare than having one.

I lost a QC job one time because of the tattoo on my wrist.

Obvious answer is obvious

Well it's trashy, so yes.