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 enlaces 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 editar my profile, I switched back to English fanpop and was able to successfully editar it right away. Idk, are tu sticking with just regular English Fanpop?

tu have to shorten some of your responses like your favorito! libros o authors o your favorito! cine o song artists. After shortening these, it should allow tu to enviar it. If this still doesn't work, refresh the page a couple of times. I had the exact same thing happen. Hope this helps!