Anonymity & Enmity
Anonymity is more widespread in the web than in reality. Generally, I hate anonymity. It is a sort of a mask, which is normal in some good situations (on a masquerade), but usually is used in a very evil situations: killers, thefts, executioners...

I hate anonymity because I mostly met it in a very bad situations. It smells of slavery, totalitarianism, lack of freedom or conscience.

Certainly, I will gladly receive a donation from an someone who don't want me to know his/her name. But as far as I understand, large donations never are anonymous, and this is not by chance.

I will communicate with a like-minded person even if he/she writes under nickname.

Still, I will avoid any sort of communication or discussion with an adversary who hides under nickname. May be some day I will meet such an opponent whose argumentation will be so bright and interesting that I will write to him even if he is anonymous. But I think that probability of such case is very low. Really bright and clever person will participate in a tournament under his real name--just I do.