Most forums and many websites (like gmail) are able to save your post in a cookie as you type. If you navigate away by mistake, the post will be waiting for you if you go right back.
Does the billion dollar forum have that feature? I got so used to it I forgot this forum is so old... :/
You can use the forum's
Drafts page but you must click on Preview or make a Post to save a draft.
https://bitcointalk.org/index.php?action=draftsI dislike if a platform auto saves what I am composing, not posting yet, without my permission.