This new software only allows access to a private forum by assigning access priveledges to individuals. There is no other way. If you do not want to reveal your PPRuNe ID to your moderator then that is your choice but you will not be able to access a private forum without that access priveledge.
Unfortunately I cannot satisfy everyone as some people would rather have just a general password for access without having to reveal their ID to their moderator but this allows abuse because many people just give out the password to their friends and it propagates until there are so many people who not eligible for access to their company forum that those for whom it was intended in the first place don't bother to use it. On the other hand, with this new system you have to trust your moderator with your PPRuNe ID as they have to verify that you are eligible for access and then have to change your access priveledges which means that there is someone who knows your identity. Shouldn't be a problem if you do not intend to break the rules but if you do not trust your moderator then you will have to do without your company forum.
Time will tell if this will work but as there is no other way of providing access to the private airline forums there is no other choice. Some moderators allow access to anyone who is employed by their company and others only allow pilots. That is their perogative. Many of the companies acknowledge the forums and actually encourage their use as it gives them (management) an opportunity to read what their workforce are saying about them and even if the discussion is on the wrong track they then know that they have to deal with some issues they maybe had not considered previously.
I have always explained it to management that they should treat the content posted anonymously as though they had a bug in the crew room. They may not know who is saying what but they know what is being said. Even if the rumours that tend to circulate are false they will know that they have to either substantiate or quash those rumours. It is all about information, whether true or false, you have to deal with it.
So, please make your choice as to whether you want a private company forum. Many of them have operated quaite successfully for a long time with their moderators requiring PPRuNe ID in order to provide access with no problems. Obviously a few companies do not like their staff having access to all this new technology and being abe to discuss amongst themselves, issues that concern their employers and that shows in the number of people who are fearful of voicing anything even from behind the cloak of anonymity (with the exception of their moderator). Private forum moderators are selected because of their enthusiasm for PPRuNe and their trustworthyness to keep any private information they hold about any of their memebers secure and we have a reputation here of looking after that integrity.