I am not posting my "credentials" on a forum that is notorious for hackers, and just to make you feel comfortable. If you are not comfortable contributing to the project that is fine. This weekend the contributors will get an advance copy of the release, and next week the press release will be live for all to read. That will be all the credentials you need. And when BlackCoin gets a bit of press you can say thank you to everyone who pitched in.
I find it interesting that some people have "concerns" about contributing to something that benefits everyone here, but have little to no concerns sending tens of thousands of coins to exchanges run by anonymous people in foreign countries. Did anyone get their BC back from CryptoRush yet?
Sometimes you have to have faith in individual people and not assume everyone's intentions are nefarious.
I've helped with many victims of online scams (and run a website dealing with it specifically) and my cardinal rule is "Never send money to anyone who provides nothing but promises." If you want to be anonymous that's fine. I know people who are like that and respect their privacy, but their usernames are backed up by at least 10 positive feedback. Like here? or Ebay? Let me know and I'll verify it for users here.
Or this. I've given you a lot of options here.
At the very least you have Tom Keller post on his Link-In under his job experience: I might be working on a BlackCoin article in the future for Bitcointalk username: IconicExpert if 23,000 BlackCoin is raised on bitcointalk.org.