Board Thread:Support Requests - Getting Technical/@comment-32704847-20190528183132/@comment-9605025-20190528185140

As you said, this is a rather long-standing issue. The best advice is to avoid taking so long to compose a reply if possible. Otherwise, copy your reply to a text document prior to trying to submit. Then, if it disappears, you can just copy it back in.

Unfortunately, I don't think staff are likely to fix this as they are planning the eventual removal of Forum anyways. Something else that might be causing this is how long you are logged in for. When users stay logged in too long, they tend to run into more of these types of issues; though I am not sure if this is the case for you.

One last thing to note is that sometimes it will actually post but just not display.

The CSS sounds like an interesting idea.