Of course not. It's the same like when you store your ported software on your own HDD.
:confused:
No feedback, bugs reports, anything = no fun. 
Ok, but you are asking to maintain uptodate stuff, aren't you?
The downloads count should give you that answer, imo.
If you port something which get 10 downloads, and some other software which get 2000 downloads, i think it's obvious on which of them you should spent more time maintaining it up-to-date.
