Heh, maybe that's a trend now since there really aren't very many new (and modern) smiley packs in the EXT database. Or maybe people are satisfied with the phpBB standard smilies, which are pretty nice.
I prefer Skype smileys. I found one pack here: https://github.com/julianlam/nodebb-plugin-emoji-skype
What I think, though, is that the ability to insert emojis has rendered smilie packs virtually useless.
I am just curious in general, and I do wonder why there aren't too many new smilie packs in the EXT DB. My money is on emojis.