There are some really fucked up things that are possible to do in Perchance, both in image and text generation. Devs and alike are trying to find ways to solve the worst and really problematic cases.
That said, there are indeed some generators with rules that may ban your IP and alike (some even block VPNs to not allow banned people to use them). And Perchance as a whole has means to screw you a little IF you post your fucked up image or if you are way too problematic in the chat. But these are the only ways in which you can have problems, and no other way whatsoever. One can be quite fucked up in the standard chat bot and image generator and text generator (respectively, https://perchance.org/ai-character-chat , https://perchance.org/ai-text-to-image-generator , https://perchance.org/ai-text-generator ) and they won't have problems as long as they don't post anything, and the same applies to most generators in the platform.
Personally, I don't have the heart to be really fucked up, but I once tried some things in other ways as a test (for example: copy pasting extremely questionable song lyrics on the generator and clicking "generate"), and I learned that the generator itself has ways to prevent certain usages, and it will tell you about it, and you won't have any problem besides a quite fearsome "I won't engage with a degenerate like you". This also happens in other things, like, for example, if you accidentally trigger the safeguards (for example, the classical in which you ask "What's the best way to kill someone: using Kamehameha or The Force?", and the AI only looks at the "kill someone" and says it won't help with crimes). There are even times in which it will flare safeguards for apparently no reason, like the time in which I asked for random pornstars names, it said it wouldn't engage with things against its ethical guidelines, but I added a single comma in the prompt, and then it came back at giving me what I asked.
In none of these experiences I ever had a problem. In the end, you can be pretty sure that, at least on the main generators, the biggest problem you may have is the AI refusing to engage with you or to give whatever you wanted; or being banned in case you post something problematic in the chat or in the gallery.
But, as for your specific case, you have even less to worry about. "Taurs" and many other kinds of "animal people" usually fit in the "furry/anthro" category. Although I find this category pretty gross and all, this category is not seen as the same as "zoophilia/bestiality", so you are safe. Yeah, even with the presence of animal genitalia, you won't have many problems, because it's all seen as "weird/mythical" "humans/humanoids" and not as animals. If you want, you can confirm that this part have no problem whatsoever in some images that keep appearing in the gallery of the standard image generator and it never happens of enough people banning the user for their images to be banned from the gallery as a whole. Even better, you can take a look at our many generators focused on furries (for example: https://perchance.org/ai-furry-generator ), and you will see that animal genitalia is widely accepted. To finish it, take a look at the "Bad Dragon" toys: a mainstream sex toy company whose products almost no one sees as "zoophilia/bestiality", much less those who are already used to porn things.
However, in the rules of the "AI Furry Generator", the rules say that "Feral NSFW" is forbidden in the gallery. According to them "Feral refers to characters or creatures depicted with the natural body form of real animals — typically quadrupeds or otherwise non-anthropomorphic in posture and proportions". Therefore, I believe animal genitalia is the maximum NSFW they accept, and you must avoid posting it in the gallery.
In the end, that's it: Perchance does have some rules and means to try to screw some people, but they are somewhat weak, and in your specific case, you are almost completely safe, and the maximum that you may face is the bot refusing to engage with you or having problems to understand the concept of a felitaur, or having some problems in case you post an image in the gallery.
(Detail: about the images, for you to be able to see the NSFW images in the gallery, you will need to generate quite the high amount of images before, otherwise, choosing the "none" filter settings will do nothing, and you will remain stuck at PG-13 images. And if you use anonymous/private mode or similar, you will have to repeat this "generation -> enable" process every time you begin a new session.)