Even without that... why would you want to facilitate a child that is half "you" to be placed into the hands of the kind of women* who need to get pregnant via a sperm donor.

Seriously. Why? Do you have some sort of sadistic desire to punish some future bastard children?

And please, don't give me the BS about "continuing your genetic line" -- it really isn't "yours" -- you certainly didn't do anything to create or even select the particular random combination of genes that comprise "you" (and really neither did your parents, they too merely passing on the combinations they were saddled with, etc).

* People can regurgitate the marketing BS and prattle on about "infertile couples" all they want; the reality is that increasingly "sperm donor" and IVF are being used to further the aims of a combination of both lesbians, and extreme feminist "don't need a man" types, as well of course as "post wall" women whose fertility has taken a massive nose dive (in which case they often not only use sperm banks, but also egg banks).