>I posted some questions in the newsgroup of microsoft. in this newsgroup you don't have to register and therefore I wrote 'Bertl' as sender and 'ro@bluechip.at' as eMail-address.

Lots of people used spam-blocked email addresses in the Microsoft public newsgroups, so you are by no means the only one.

>some of my questions disappeared shortly after the appeared

What newsreader were you using? How was it set up? Sometimes you have to re-set a newsgroup in Outlook Express to see all the messages.

> and most of the replies where 'If you tell us your real name you'll get answers soon' - isn't this silly???

I could only find one such reply, from Herfried K. Wagner on March 11, archived in Google. I don't see people posting comments like that in the English-language Fox groups and from the looks of the names and email addresses, using false ones is fairly common.

Although I see impolite people in every newsgroup it has everything to do with the individual and nothing to do with the fact that Microsoft sponsors the newsgroups.