OK I was making a reply on the Boards to "No Mans Sky's Disastrous Launch" after a considerable amount of typing (Not the fastest typer in the world) I clicked on submit and It took me to another page that did not look like a CHU page, that says One More Step wanting me to click I am not a Robot,Then after clicking the ROBOT box the page went to "error page 404" so I ask the Question what is happening after all that typing I get screwed well I felt as if I had been screwed or was it a Glitch??
I think what you describe is caused by CloudFlare, CH's security Co. doing its thing. When I type a lot, I try to remember to select all the text and copy it just in case. If you forget, you can usually keep hitting Back and get back to your text.
Also, if you use Ad Block or AB Plus, its best to disable it for this site. I also have better luck with text using IE instead of Chrome. And if you edit a post, it usually puts the little line at the bottom about you having edited the text. That line alone can trigger CloudFlare because of all the extra punctuation. Delete that line when you see it.