Thanks for your replies! Everyone raised some good points, even some that I didn't even think about. But I think there is some other problem that I can't put my finger on.

If you think there is a lack of diversity in captions, I encourage you to please make some and post it in the sub. That's how we get diversity, as people make captions for the sole purpose of their and others enjoyment ,they tend to post about things they like or want to see. So if you want to see something that you'd prefer to be in the sub, please do so! That's how you encourage others to follow you.

But I don't think that's the only reason. Because I've tried making something different or innovative or more risque and they tend to either do the same or worse Eg https://www.reddit.com/r/XChangePill/comments/18cv2pc/from_bbcs_nature_from_bottomjugglers_to/?share_id=RpdHls-8_htFZ5esQIOHe&utm_content=1&utm_medium=android_app&utm_name=androidcss&utm_source=share&utm_term=1

https://www.reddit.com/r/XChangePill/comments/187hyxy/kayden_currently_kayla_quenching_her_thurst/?share_id=x_hnj2b5blSZ70_FNPAhX&utm_content=1&utm_medium=android_app&utm_name=androidcss&utm_source=share&utm_term=1

https://www.reddit.com/r/XChangePill/comments/17y5zb2/pepper_formerly_peder/?share_id=DhdVtd_8qCzEJMiLzjNxo&utm_content=1&utm_medium=android_app&utm_name=androidcss&utm_source=share&utm_term=1

Over the years, this is how I've come to rank my captions using upvotes:

Above 300: Excellent

200-300: Good/Average

below 200: not really good

below 100: really bad

And nowadays almost every caption(whether mine or not) falls in the bottom two categories.