mStuff

UPDATE: I asked on the IRC and got a response, I do not understand what he means by it though, if anyone can enlighten me, I will be very thankful 🙂

Person:
well if they add it as custom post type, you can sort by the speed field
and most public submissions will add as custom post type

Me:
a custom post type, as in comment / response to a page?

no, as in a new post
what the post type will be depends on what user submission form you use

and are they able to do this without registering anywhere?

user submission stuff depends on plugins, and they are different