There's generally no room in the thread title if I want to put in the author of a feature as well as the genre (sometimes people don't recognize a high-profile genre writer, other times people may not be interested in what looks like a generic category offering).
I do try to tag with KDP+ or Kindle DRM-free (when applicable) if there's enough space and put the little yellow warning-triangle icon which shows up next to the thread title when I can remember it (technically, I started doing the latter for those regular promo books which I had reason to believe would be very short-lived and only last a day or so, but then Baker started doing their months' worths of 1-day only freebies and I started to forget to do that) but sometimes it's omitted if I forget and only a moderator can edit a thread title icon in after the fact.
Hope this helps.
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