As a generalized problem, I would like to see more cross posting. Put the main post in the appropriate nice community and cross post to a larger one. That gets the content in front of the larger audience and also implicitly promotes the niche. It probably also saves hosting costs at scale, especially for video. Ideally, client software would be smart enough to show users only the nested post once in their feed even if subscribed to both communities involved, but there’s value in the approach regardless.
OP you seem to do a good job of posting individual images only to two communities at once, which I think is a pretty reasonable approach. It doesn’t devolve into annoying spam for users to see one extra copy in the feed, and it’s nice to see you spread the legs love around to keep more communities active.
More than two copies would start to feel like spam. That would be a shame, especially as a non-monetizing couple just sharing sex pics for fun (thank you!) and since internet points don’t matter. I could see why an OnlyFans teaser account might stick to larger generalist communities, but they also wouldn’t be genuinely interested in Lemmy’s organic growth.
Getting the niches right is pretty important. For example, I’m not particularly interested in cum on faces, so I’m not subscribed to c/cumsluts, but I sure like cum dripping out of pussies so I follow c/creampies. It’s a little disappointing any time I look at the local feed and happen to see great creampie posts that only got put in cumsluts, but even that FOMO is not going to get me to subscribe to the wrong (for me) niche. More cross posting would be great.