Am I the only one?

Yes. I have a similar problem to yours. But, rather than not being able to submit, I need a shorter response.

I've been having that issue (but it also gets rid of my लिंक्स when I update it that way). I'm getting fed up with it.
I'm not sure if this is coincidence, but after a long time of trying to संपादन करे my profile, I switched back to English फैन्पॉप and was able to successfully संपादन करे it right away. Idk, are आप sticking with just regular English Fanpop?

आप have to shorten some of your responses like your प्रिय पुस्तकें या authors या your प्रिय फिल्में या song artists. After shortening these, it should allow आप to प्रस्तुत करे it. If this still doesn't work, refresh the page a couple of times. I had the exact same thing happen. Hope this helps!