> does a child have a right to know who their biological parent is?
Not necessarily
> Is it ethical to donate, create offspring, and remain anonymous?
Yes
> Some family predispositions to certain health issues aren't fully understood ... these genetic anomalies aren't always known at time of donation, and thus won't be handed over to the offspring
Same thing with conservative methods, not relevant
> Is it ethical for a sperm bank to threaten legal ramifications on people who attempt to contact their biological father?
Yes
> We don't currently fully understand the effect of male age on creating children.
Again, not relevant
> Is it ethical to allow numerous offspring from one sample?
Yes
> Are sperm banks a form of eugenics?
Sometimes, yes
> If a sperm bank offers the top 1% genetic material, and people can pay to have elite genetic children, is this ethical?
Yes