To the preposter: It doesn't change anything, wether participants must post or not. The question is: will they get paid or not?
Edit:
Just saw a statement of them:
https://bitcointalksearch.org/topic/nexchange-freezing-previous-signature-campaign-2179882
Also doesn't change my impression, that members of this forum will be (at current campaign) and were (at previous campaign) scammed.
I was a member of the first campaign. I can confirm that I was paid for the last few days of posting. Payment was received today upon news that the campaign was closed. So, I don't believe that members of the original campaign will be / were scammed.
However, it would be preferable if they escrowed the funds for the new campaign with a known, trusted third party. Clearly, their campaigns have been mismanaged, so it's only reasonable to ask that of them.