Novelr's Webfic vs. Weblit Debate is from a couple months ago, admittedly. However, I do need to catch up on these things since I am planning to run Guiding Darkness (and some short story erotica, and maybe another...so sue me. I'm insane and I love projects.) as a serial off of this site.
Platform unity is good. But it is only good if that platform is recognised by 'customers'. Right now, there isn't enough volume on the terms webfic and weblit to matter and it could be years before it is the case. Personally, I'm going to use both terms to hedge my bets and guarantee I'll at least have some rank in the SERPs for both terms.

To me, unlike Eli James who writes Novelr, the semantics are irrelevant. Completely. What matters, to me, is the ability to draw organic search traffic to my website. That is all that matters. Bringing more targeted eyeballs to my domain on the Internet so I can entice them into staying.

As you can see, Online Fiction is the high volume term to milk. Thankfully, web fiction guide is second for that term and may one day be first. Web serial can be confused with the video-based equivalent but getting on the first page for that would be awesome too.
I do agree that the hash tags #weblit and #webfic are best for Twitter & Identi.ca. Both terms are already heavily used there.
Ultimately, converting readers to web fiction is best done by drawing people in from various sources (such as web-based roleplayers) that already have a high volume of reading/writing going on by the users of such sources.
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I quite agree with you - even if I did do the original article. Truth of the matter is that most people in the community now use webfiction and weblit, and there's been no more debates about the term - not, at least, until what you point out comes true and the 'customers' decide what to call this brand of fiction.
Till then. =)
I'd say they already have, Eli. :) Online fiction. Maybe that's just me tho.
I'd really like it if that happens!