If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.
No idea, but you certainly should have enough.
I was asking on behalf of a friend who has a good essay -- I wanted to bring him into the online community by encouraging him to post it to discussion.
By the way, based on some old bug tickets, I think the answer is 2.