Off-by-one error with comment length limit

[cellio]

I tried to post the following comment, which according to the tracker was exactly 500 characters:

"Thank you both for explaining that background. If we have separate categories for photo/video/CV, then within the first two at least we'd still have a mix of technical and artistic, right? Will the former drown out the latter? Or is the idea that each of these categories would be small enough that the artistic posts would still be seen? Are there questions that would apply to both, so having to choose photo vs video would fragment the questions? A good ontology (category & tag) will be critical."

It neither posted nor emitted an error message, which I think is the current expected behavior for comments that are too long. When I edited to remove one character (499/500), it posted.

Since the UI reports "X/500", that implies to me that you can actually go up to 500. It seems the current maximum length is actually 499.