Hmm Interesting suggestion here... I'll answer it from my own very selfish point of view ^^
1) I don't read most of what I upload for this forum (for different reasons - don't like mangaka, don't like this particular kink etc. But I still upload it because other members are interested.)
2) making summary/rating obligatory would require me to read every manga I upload and frankly, there's no way I'm doing that (no time and no interest)
3) searching for manga in WinMX/eMule/Share/Winny etc (I'm talking about raws here and it often takes months to find something particular. Yes, months) and uploading it to different services is already troublesome enough, uploaders hardly need an increase in workload =_=
In other words: what's that about Manga Review section? ^_~ Let's do that instead. XD