Having had my own experiment with anonymity, I can only suggest that you keep everything open and above board while still offering an opportunity for people to air their grievances and find out what’s going on.
I am rapidly coming to the conclusion that the vast majority of people in strata are concerned with only three things: is this going to affect my levies, is this going to affect my lifestyle, and who is going to fix it for me?
So put your website together, pull together some articles about how the management of your scheme is wasting money and their decisions or lack thereof are affecting property values and you can even load up a forum like this one using software called SimplePress so people can log in and complain about each other – but be careful you don’t let them defame each other as that could be trouble for you as the ‘publisher’.