nope, using my brutal 100% cross platform next generation nuke in dev, using a upload form for whatever, forum attachments, downloads, signatures, etc etc, all folders cannot be written to.
if you upload using a ftp client, from desktop or net2ftp, created folders have owner 120222 and what net2ftp displays, using mkdir, from php script on your site, the owner will be 2001
http://c0re.vndv.com/