I wrote a couple tech discussion logs about code I wrote for my project others might find useful. Maybe the mods thought they weren't very useful. I don't think I've made a "major update or launch" post. At least not on purpose. But It's hard to tell which my posts are those kind since it doesn't show up on your list of devlogs. You have to click into each of them to find out.
In any case, absent any official...er response, this seems likely. A post that was mis-categorized and it tripped in the queue. Funny enough I plan to publish my first legitimate major update tonight. But I'm putting more effort into that one. Hopefully, it does the trick.
Thanks for the information.