If you're frustrated with the deleted typed messages:
Have at least two tabs for WP -- one where you type your posts or messages, and one is pretry much at any part of the forum; whether it's your profile page, index board, or another thread.
Before posting or sending your typed message, refresh the tab where you don't type your messages at.
If it doesn't trigger the "Checking Your Browser" Crap,
it's safe to send/post/preview without the risk of having to type it all over again.
If it does trigger, just wait for it to end. Then go back to your typed messages, and send/post/preview.
If the whole thing triggered after you click send/post/preview, click 'go back' on your browser's interface. Then refresh on the other tab before going back at the typed message to send/post/preview with.
Alternatively, if you really wanna play safe, select your whole message then copy it. Or type it somewhere else, copy/paste it where you want to send/post/preview it within the forum. So that if it triggers, you won't had to retype again.
Good idea.
Under my prior username, i sometimes just quit going to the web site, sometimes for weeks or months.