The simple fact is that there is typically more inherant trust in the message someone is saying when they
are using their real identity than when they are an anonymous identity and *may* not be genuine.
Fair enough: it's sensible to scrutinize messages - but it ought to extend beyond who the messenger is rather than fixating on so-called "worthiness" and "authority" - the trap the JWs and others have fallen into in common with lots of other religious groups.
Surely at an important level the content of what is said should also count for something? I may initially listen to someone because they are telling me who they are but ultimately I will also weigh up what they have to say. Equally, I may be a bit more hesitant to listen to someone like me who uses as avatar, but I'll still weigh up the content and decide for myself what the merits of the message. This is not the place for me to fully explain why I choose not to reveal my name, but one day when my immediate family are no longer such a big deal, I probably will. That shouldn't make much difference to what I say, but it might be one less barrier for some to focus on the message not the messenger.