Site feedback, server error

I was going nuts trying to narrow down why I was getting a 500 server error when trying to post and I narrowed it down to my post/reply containing the em html tag, it is annoying that you don´t get any descriptive error like banned text or something like that, I am leaving this as a warning for others if you get a 500 error in GC it is likely you are using an html tag in the post.