Yes, I got an invite on March 25, by e-mail (Special Invitation to Share Your Opinions). This linked to a short questionnaire that took a few minutes to finish. It asked about what hotel chains/brands I stay in, how often I stay in a hotel each year for business/pleasure, etc.
On April 1, received another e-mail (Welcome to Hyatt Gold Passport's Online Community) welcoming me to the community. Included in that e-mail was my login information and an offer for 2500 points: "Getting Started
Log in to the community and fill out your profile by April 15th and we will provide you with 2,500 bonus points.*"
There are also some other strange surveys and discussions in the community space: 5 Things About Me, Name for The Community, and Party Time.
At least a few of my other coworkers also got this invitation. We are all Hyatt Diamond.