I was keeping a list of questions which got closed as off-topic as they were about 17.10 for past few weeks. Now as 17.10 is released, I think at least some of the questions have the potential to be reopened. Here are some:

How do I enable 'minimize on click' on Ubuntu dock in 17.10 and later? (checked, still doesn't work in 17.10, so the question seems valid) [Reopened]

In Ubuntu 17.10, how do you get your workspaces on both monitors?

17.10 file explorer app Files 3.26.0 fails to recognize mouse middle button to lower window (probably still valid, issue with csd)

Ubuntu 17.10 two monitors different resolution on Dell XPS 13 from 2015

How to disable the on screen keyboard in 17.10

People with reopen vote privilege please have a look at them.

Also there were some which got deleted. So I have no idea how "reopen-worthy" they are:

How to find what is using a shortcut? [Reopened]

https://askubuntu.com/questions/960919/is-there-a-way-to-get-removable-drives-icons-in-ubuntu-dock

https://askubuntu.com/questions/962372/how-to-turn-off-shortcuts-in-new-ubuntu-dock

https://askubuntu.com/questions/962611/how-to-remove-gnome-from-ubuntu-17-10

https://askubuntu.com/questions/962779/ubuntu-17-10-how-to-re-position-windows-from-shell