I see it almost exclusively on Christian MBs or LJs of obviously Christian people (meaning, they make it a point to say they’re Chrsitian).
Not really a GQ in the strictest sense, because I’m asking for opinions or personal reasons why so many Xtians use it and why I’ve never seen it anywhere outside of Xtian based interwebby stuffeses. You know what I mean.
If the link viloates SDMB rules, feel free to delete. An example found here.
You mean it’s a Christian thing? I never would’ve guessed…
I just thought it was a cute gif…
I don’t know it it’s a Christian thing or not. But I’ve never seen it outside of Christian stuff.
A few other smilies in the same folder:
Pastie spin.
Threesome
69
Satan animation
Bong hit
I won’t bother to link to all the cheesy little animations of pole dancers.
Anyway, I don’t think there’s an explicit connection to Christianity with that collection. 
Anyone else reminded of The Graduate? “You’re missing a great effect!”
No. No it doesn’t. Still doesn’t help with the worm gif, tho. 
On a related note…
On my board, I have need of a small, repeat, small, vomit smiley. However, I need one unique thing from it. It has to have a little dog come up to chow down on the chunks that get spewed. As one of my members said, “It’s good to have standards.”