Why share it with 3rd parties? Because that's the typical method of creating an account and managing it in case you forget your password and they will typically claim that they aren't going to share it with anyone and the cost of finding an anonymous mail that they will accept is quite a bit of time. (I typically do not use my email to sign up for anything.)
Why not public? I guess it's fine if everyone knows it assuming a perfect spam filter (they aren't perfect btw) but I don't want it to be public knowledge what websites I use and what I say on those sites. Non-sinster example; I could be publicly discussing a sexual encounter and just not want the whole world to know (non-psuedonymously) that I did that.
Why not public? I guess it's fine if everyone knows it assuming a perfect spam filter (they aren't perfect btw) but I don't want it to be public knowledge what websites I use and what I say on those sites. Non-sinster example; I could be publicly discussing a sexual encounter and just not want the whole world to know (non-psuedonymously) that I did that.