I just commented on an article and when I clicked the button, it was cut off mid-sentence.

Originally I wrote 4 paragraphs. I deleted it and reposted with returns removed so it was only 2 paragraphs, but it cut off at the same spot.

I think prior comments are longer than mine. Although, I'm posting from my phone, so I can't do a word count. Has anyone noticed browser or operating system affecting this?

what i noticed is if i include a certain sign like a hyphen that's where the comment gets cut off. hope it can get fixed.

Like Ben said, it has something to do with special characters. For some reason, certain special characters will cause the comment to cut off at the point of the character.

A-ha! / slash character is acceptable, but & ampersand is not. Thanks guys.

Hmm that's odd. Special characters? Sounds like this may be an attempt at XSS mitigation. The strategy though might be a bit too aggressive and is filtering legitimate text.