Haze, I usually add photos or manuals to the dumps, so the archives get rather big which makes email cumbersome. If I add a file hosting link to the email, nothing is gained as opposed to posting in this thread.
How about granting regular contributors write access to an "incoming" , "upload" or even personalized pure upload directory on the FTP instead?
It might be that such a setup already exists the problem is I guess knowing who is 'regular'
I agree posting things in public helps, my concern is that some of it is going to be lost before it get processed tho, so something does need to be done to help prevent that. There needs to be a clearer way of alerting people to 'this needs archiving'