I'd be okay if they were added to a playlist as well.
It's different for different types of links.
?sort=p to the end of the link for a user's videos to sort by views:
To sort by most recent, use
sort=dd, or the reverse
For sorting results of a search, use
or by rating:
or by upload date:
To limit search results to videos, add
You can also limit search results by
Having said all that, it appears the features seem to come and go.