Maybe this is a bit weak to be my first (and probably last) article, mostly because I'm not a native English speaker, and I'm not confident enough on my grammar as to write articles often.
This is about some small thing, it has been bothering me for a while and wanted to mention as curiosity on the headline, but it felt like too long for that. This would be more close to a "post" than an actual article, so do not expect much.
Thing is, talking with people about training loras, or looking for bounties, I come across this weird idea of "training for NSFW". Honestly, I have no idea of what people means with that. Maybe I'm the one in the wrong, but I believe there is a misconception about that. At least on XL, specially on Pony, YOU DON'T NEED any NSFW data at all to train a character lora. You don't train for "SFW" or "NSFW" or "both" you train the lora and that's it, you can use it for either. I wouldn't be able to train a lora that is only for SFW, even if I tried to. All the characters lora are going to be able to produce "NSFW".
Actually, none of my character loras were done using NSFW data. Even the ones about hentai anime characters were done with SFW data. Now, I have to be completely honest with you here, I can't swear this on the bible because I'm quite sure may be a nipple or two slipped into some of the datasets here and there, but if that was the case it was only because it was so subtle that it has gone through me without noticing.
Now, there are no moral considerations at play here. It's simply because it is really not necessary. If you are making a lora about a character, you need to teach the lora how her dress is, you don't need to teach how tidies are, the model you are gonna use already knows that, what it needs to learn is the dress, so any picture you put in there with her dressed it's going to help the lora lot more than any NSFW you can provide, even if you want the lora for NSFW only, because it's going to add something.
Man, unless I want to teach it a particular swimsuit design I try to not even use pictures of the character on a swimsuit unless I'm desperate for data, because it's not really going to add that much, Pony already knows how a school swimsuit looks like, doesn't need more references of that, then again an additional picture of the character dressed will help more.
Please don't take this as an iron rule though, if you are making a lora of someone like lets say Jinako you probably want lots of pics of her belly.
The exception here is for style loras, for that I use lots of NSFW data, mostly because THAT'S IMPORTANT, the way tidies are drawn by an artist is relevant because you want to replicate that way of drawing tits.
So, basically what I want to say is you don't need to train character loras "for NSFW" you train loras, period. And as long as the model you are using for generating the images is not censored you will be able to use it for NSFW stuff even if the training data does not contain a single NSFW picture, and actually including SFW always help more than NSFW even if you want to use the lora for lewd ends. (Then again artist/style loras is an exception to this, since in that case is the opposite, you want as many nudes as possible)
Now, obviously you CAN add NSFW data to the training of characters, and obviously that will give you access to a most varied dataset, while if you don't, it will rely more on the model dataset to generate the NSFW images. But then again, it is not really necessary to do such a thing and overloading a lora with a bunch of images that does not teach anything relevant is kind of pointless.
Sorry if this is kind of disappointing for an "article", maybe you expected more or more technical information, but as I said at the beginning this was more akin to a simple comment than to an actual article about an idea I've seen repeated constantly.
Long story short...you don't need to ask for loras "capable of NSFW" specially if you are asking for Pony loras, any character lora you do it's gonna able to produce NSFW with pony models, and more often than not including data of the characters with their signature costumes will help more than including data of them in the nude, even if the objective of the lora is to lewd them.