Is this list generated?

Of course it's generated! You don't think I'd type all that by hand, do you? ;-)

Are you/we going to populate it later manually?

My intention is to update the list as new snippets are posted.

Can the order by title ignore leading punctuations?

The number of ways to order this list is virtually infinite. I chose the easiest one. I thought about doing it as you suggest, but then I considered that if I'm going to skip leading "junk", then I should also consider junk such leading alphanumeric strings as "code", "golf", and "updated"... and that's obviously a lot more work. Maybe later. ;-)
Did you check out Snippets Permuted Index? Maybe that will do what you want, since it ignores non-\w characters.

Can you/we fix the layout?

There's nothing wrong with the layout. If you're having problems, maybe the table is too wide for your screen. It also happens (for me, at least) that sometimes the page does not get served in its entirety before the connection is closed. This could cause page rendering problems.
I've moved the list off site. Let me know if you still experience problems with it.