The <span> sounds like something I would really, really like. Do you have an example of what that looks like in the edit box (ie, a biography that uses it)? I looked it up online, and it doesn't seem to match what I take your meaning to be.
The "sources" section, for me, is all automated. I use <references /> and don't have them individually listed. Would using <span> prevent me from using that?
Thanks for the more the kind words and suggestion, would love to make it a tad easier to read and a tad more smooth.