Comments get cut off

Does anyone else get their comments/posts cut off by this site?

'Cause it's been happening to me and it's driving me crazy!!! I write my stuff, I hit "post" AND THEN I SEE THAT MY TEXT HAS BEN HALVED FML!!! And it never cuts off in the middle of a word or sentence either so it would at least be clear what happened to whoever reads my comment. It only seems to cut off the last paragraphs, making it seem like my comment is complete, even tho I elaborated more on it in the part that got cut off
Did this happen to anyone else? Why the fuck does it happen and how to avoid it? 'Cause it happened to me 3 times this week and 2 out of those almost got me in trouble with other users because it caused misunderstandings.