Okay.
It looks like I’ve been volunteered (drafted, ror) to try writing a WordPress plugin that would allow us Posties to (semi-)automate the process of disclosing our compensation per post. Sadly, I barely know enough PHP to get by.
I’m thinking that if one were to write a plugin to work with WP, they’d want it to slurp data from the post’s meta fields. Fields appear to not show in the loop if you prefix them with an underscore (_sponsored_post? for example, would not show up, but Music does), assuming you show each entry’s meta information. So, if one were to write a plugin that made it easier to add information like this (perhaps an AJAXed form right under the post’s entry fields here in WP, just above the uploader form).
Of course, if someone who actually, y’know… knows PHP, would like to tackle this task, I certainly wouldn’t object. 
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