The questions asked there mostly seem basic and answered by some sequence or another. Maybe someone should make a post pointing out the most relevant sequences so those people can be thinking about the unsolved problems on the frontier?
Great idea. I commission you for the task! (You might also succeed in collecting effective critiques of the sequences.)
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.