Thank you to everyone who answered today. Seriously, I really appreciate your mentorship.
Good to hear from Elizabeth Bacon, whose Portland IxDA chapter events I've attended. Thank you also for your simpathy Yvonnia. CWS, Monkeyshine, Christian, Eduardo all raise good points, so here's some clarification in response :
The post I submitted is not public on Mr. Follett's site. However, I'm still providing public content for his media property. I registered, created a profile with avatar/picture and a copy of my bio. This I believe is non trivial because the membership of an online community is commonly an indicator of that community's' quality, and Mr. Follett is free to solicit any number of professional ID applicants (without being required to be transparent by our Job Board), although he did admit to me over the phone that he was "considering 30 people for 2 or 6 'Expert' positions".
In Mr. Follett's first email to me, it sounds like I'm being offered a job, albeit not in strict enough language: "If
you're interested in taking the next step, we would need you to write a
"mock" review on a sample concept. This is just to make sure that we're
all on the same page before adding you to the panel and giving you
access to client concepts. It is also a good time to ask any questions
about the process and expectations." (my bold emphasis)
So, in answer to the comments regarding the black and white, contracts and managerial strategy - under normal circumstances, I collect a down payment and walk clients through a fee schedule. But this was a $50 gig between two people who should do business together: a writer with experience, talent and a BA degree, and a publisher with a new venture, budget and initiative to reach out to IxDA.
I'll admit, I took a risk, and it didn't pay off. I feel scammed, but I should have got a contract in place, period.
So, one last thing, to Mr. Follett, if he's reading, which I doubt because he joined the day he posted the job, but if he is: I'm a user of your site.... aaaand I feel a little scammed.... perhaps the user experience of your site could be improved a tad yes? Maybe you can ask one of your "experts" about that.
// endof update (and rant)
I have a little dilemma. It concerns freelancing on the net and not getting paid, and I think it should concern at least a few other people here so here goes...
Two weeks ago on our Job Board, there was posted an opportunity  by a user registered as Concept Feedback, whose real name is Andrew Follett from Oak Park Illinois. The opportunity was to write for ConceptFeedback.com - a writing gig for "Experts" who would be paid $50 per review on web design mockup.
I email a letter of interest, Mr. Follett replies with the details and complements on my work, and after some technical difficulties that eat up a tiny bit of my Saturday morning, I spend two hours writing a design critique  for Mr. Follett's media property, ConceptFeedback.com, and submit it.
So three days go by, no word from Mr. Follett, I follow up with an email, then a phone call. On the phone Mr. Follett is genial and I get the sense that he's launching a new venture so I'm polite and he assures me he will read my submission with his partners and get back to me.
A week goes by, no word. I follow up again this morning, this afternoon a rejection from Mr. Follett, saying that there were so many applicants, and it was a very competitive, that I've been "wait listed", tough decision and so forth, good luck.
First question: Should I remove my content from his website?
Second question - maybe more important: Are Mr. Follett's actions ethical? If I hadn't persisted I doubt he would have ever got back to me, and my work would be earning him revenue on his media property, for which Mr. Follett advertised a job on our discussion forum.