Meraki's page

So I'm homebrewing a short adventure for my players for in between modules, and I'm setting it in Osirion. They'll be going on a pyramid-exploring adventure. When I was reading the Osirion book, it says at one point that there are a bunch of androsphinxes in a mountain range that may know a lot of information about the treasure sites along the coast, which would be where the party is headed.

I thought it might make a neat encounter for them to negotiate with the sphinx to get knowledge of how to get into the site they're trying to investigate. In the same little blurb, it mentions that the sphinxes are pretty haughty and don't hand their knowledge out to just anybody, but there's a particular bit of knowledge they'd love to have and might be willing to trade for.

I'm trying to make up something that the sphinxes might want to know, but so far I'm drawing a blank on good ideas. So: what kinds of things do you think a sphinx might want to know about?

I've had a few articles in Wayfinder in the past and upcoming issues, and I now have a website. I was contemplating putting up some of those articles as blog posts on the site as samples of my work. I know that Wayfinder staff have said in the past that it's fine to put your Wayfinder articles up on a personal website as long as it is after the issue is out and it won't prevent Wayfinder from using them. My question, after reviewing the community use policy, is this:

If something was previously published in Wayfinder and subsequently put up on a personal blog, do you have to register it under the Community Use Registry for that blog post? Or has it already been registered through Wayfinder? (I'd be including a link to the issue in question on the post.)